/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:59:01,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:59:01,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:59:01,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 16:59:01,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 16:59:01,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 16:59:01,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 16:59:01,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 16:59:01,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 16:59:01,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 16:59:01,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 16:59:01,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-03 16:59:01,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:59:01,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:59:01,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:59:01,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 16:59:01,220 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:59:01,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:59:01,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:59:01,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:59:01,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:59:01,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:59:01,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:59:01,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:59:01,222 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:59:01,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:59:01,222 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:59:01,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:59:01,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:59:01,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:59:01,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:59:01,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:59:01,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:59:01,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:59:01,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:59:01,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:59:01,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:59:01,410 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:59:01,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-03-03 16:59:01,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d829731be/19c7ef966cba4cc0b34d0c089c66d5a2/FLAG2e5b7547a [2022-03-03 16:59:01,793 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:59:01,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2022-03-03 16:59:01,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d829731be/19c7ef966cba4cc0b34d0c089c66d5a2/FLAG2e5b7547a [2022-03-03 16:59:01,807 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d829731be/19c7ef966cba4cc0b34d0c089c66d5a2 [2022-03-03 16:59:01,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:59:01,810 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:59:01,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:59:01,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:59:01,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:59:01,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:59:01" (1/1) ... [2022-03-03 16:59:01,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0c8b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:01, skipping insertion in model container [2022-03-03 16:59:01,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:59:01" (1/1) ... [2022-03-03 16:59:01,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:59:01,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:59:01,995 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-03-03 16:59:01,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:59:02,003 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:59:02,016 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2022-03-03 16:59:02,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:59:02,026 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:59:02,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02 WrapperNode [2022-03-03 16:59:02,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:59:02,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:59:02,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:59:02,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:59:02,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,051 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 158 [2022-03-03 16:59:02,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:59:02,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:59:02,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:59:02,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:59:02,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:59:02,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:59:02,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:59:02,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:59:02,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (1/1) ... [2022-03-03 16:59:02,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:59:02,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:59:02,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 16:59:02,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 16:59:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:59:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 16:59:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 16:59:02,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 16:59:02,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 16:59:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:59:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:59:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:59:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:59:02,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:59:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 16:59:02,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:59:02,181 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:59:02,236 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:59:02,237 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:59:02,491 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:59:02,498 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:59:02,498 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 16:59:02,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:59:02 BoogieIcfgContainer [2022-03-03 16:59:02,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:59:02,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:59:02,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:59:02,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:59:02,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:59:01" (1/3) ... [2022-03-03 16:59:02,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a485d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:59:02, skipping insertion in model container [2022-03-03 16:59:02,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:59:02" (2/3) ... [2022-03-03 16:59:02,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a485d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:59:02, skipping insertion in model container [2022-03-03 16:59:02,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:59:02" (3/3) ... [2022-03-03 16:59:02,509 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2022-03-03 16:59:02,512 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:59:02,513 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:59:02,513 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:59:02,513 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:59:02,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,545 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,546 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,547 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,548 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,549 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,550 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,551 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,552 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,553 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,559 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,560 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,561 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,562 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,563 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,564 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,565 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,566 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,566 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,566 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,567 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,568 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,569 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,570 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,571 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,572 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,573 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,577 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,577 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,578 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,579 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,580 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,581 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,582 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,584 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,584 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,584 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,585 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,586 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,587 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,590 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,593 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,594 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,595 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,598 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,599 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,601 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,602 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:59:02,605 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-03 16:59:02,644 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:59:02,656 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:59:02,656 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 16:59:02,673 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 198 places, 210 transitions, 436 flow [2022-03-03 16:59:02,954 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:03,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:03,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:03,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:03,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:03,070 INFO L85 PathProgramCache]: Analyzing trace with hash 997613538, now seen corresponding path program 1 times [2022-03-03 16:59:03,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:03,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729386116] [2022-03-03 16:59:03,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:03,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:03,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:03,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:03,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729386116] [2022-03-03 16:59:03,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729386116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:03,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:03,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:03,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333433606] [2022-03-03 16:59:03,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:03,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:03,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:03,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:03,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:03,505 INFO L87 Difference]: Start difference. First operand has 11777 states, 11776 states have (on average 2.9679857336956523) internal successors, (34951), 11776 states have internal predecessors, (34951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:03,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:03,928 INFO L93 Difference]: Finished difference Result 17273 states and 48971 transitions. [2022-03-03 16:59:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 16:59:03,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:04,066 INFO L225 Difference]: With dead ends: 17273 [2022-03-03 16:59:04,066 INFO L226 Difference]: Without dead ends: 15483 [2022-03-03 16:59:04,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:04,069 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 565 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:04,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 2935 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:04,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15483 states. [2022-03-03 16:59:04,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15483 to 11190. [2022-03-03 16:59:04,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11190 states, 11189 states have (on average 2.897220484404326) internal successors, (32417), 11189 states have internal predecessors, (32417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11190 states to 11190 states and 32417 transitions. [2022-03-03 16:59:04,403 INFO L78 Accepts]: Start accepts. Automaton has 11190 states and 32417 transitions. Word has length 101 [2022-03-03 16:59:04,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:04,405 INFO L470 AbstractCegarLoop]: Abstraction has 11190 states and 32417 transitions. [2022-03-03 16:59:04,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 11190 states and 32417 transitions. [2022-03-03 16:59:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:04,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:04,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:04,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:59:04,432 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:04,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:04,433 INFO L85 PathProgramCache]: Analyzing trace with hash 672990146, now seen corresponding path program 1 times [2022-03-03 16:59:04,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:04,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332511353] [2022-03-03 16:59:04,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:04,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:04,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:04,515 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:04,515 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332511353] [2022-03-03 16:59:04,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332511353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:04,515 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:04,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:59:04,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559859880] [2022-03-03 16:59:04,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:04,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:59:04,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:04,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:59:04,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:04,517 INFO L87 Difference]: Start difference. First operand 11190 states and 32417 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:04,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:04,683 INFO L93 Difference]: Finished difference Result 15448 states and 43794 transitions. [2022-03-03 16:59:04,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:59:04,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:04,739 INFO L225 Difference]: With dead ends: 15448 [2022-03-03 16:59:04,740 INFO L226 Difference]: Without dead ends: 15393 [2022-03-03 16:59:04,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:04,742 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 122 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:04,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:04,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15393 states. [2022-03-03 16:59:05,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15393 to 11390. [2022-03-03 16:59:05,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11390 states, 11389 states have (on average 2.8798840986917202) internal successors, (32799), 11389 states have internal predecessors, (32799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11390 states to 11390 states and 32799 transitions. [2022-03-03 16:59:05,094 INFO L78 Accepts]: Start accepts. Automaton has 11390 states and 32799 transitions. Word has length 101 [2022-03-03 16:59:05,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:05,096 INFO L470 AbstractCegarLoop]: Abstraction has 11390 states and 32799 transitions. [2022-03-03 16:59:05,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,096 INFO L276 IsEmpty]: Start isEmpty. Operand 11390 states and 32799 transitions. [2022-03-03 16:59:05,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:05,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:05,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:05,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:59:05,121 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:05,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1130247864, now seen corresponding path program 1 times [2022-03-03 16:59:05,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:05,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561102745] [2022-03-03 16:59:05,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:05,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:05,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:05,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561102745] [2022-03-03 16:59:05,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561102745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:05,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:05,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:59:05,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105764117] [2022-03-03 16:59:05,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:05,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:59:05,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:05,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:59:05,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:05,201 INFO L87 Difference]: Start difference. First operand 11390 states and 32799 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:05,280 INFO L93 Difference]: Finished difference Result 15691 states and 44284 transitions. [2022-03-03 16:59:05,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:59:05,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:05,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:05,322 INFO L225 Difference]: With dead ends: 15691 [2022-03-03 16:59:05,323 INFO L226 Difference]: Without dead ends: 15450 [2022-03-03 16:59:05,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:05,324 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 126 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:05,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 432 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:05,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15450 states. [2022-03-03 16:59:05,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15450 to 11400. [2022-03-03 16:59:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11400 states, 11399 states have (on average 2.879287656812001) internal successors, (32821), 11399 states have internal predecessors, (32821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11400 states to 11400 states and 32821 transitions. [2022-03-03 16:59:05,690 INFO L78 Accepts]: Start accepts. Automaton has 11400 states and 32821 transitions. Word has length 101 [2022-03-03 16:59:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:05,690 INFO L470 AbstractCegarLoop]: Abstraction has 11400 states and 32821 transitions. [2022-03-03 16:59:05,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 11400 states and 32821 transitions. [2022-03-03 16:59:05,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:05,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:05,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:05,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 16:59:05,717 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:05,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:05,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1378875394, now seen corresponding path program 1 times [2022-03-03 16:59:05,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:05,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175237927] [2022-03-03 16:59:05,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:05,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:05,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:05,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175237927] [2022-03-03 16:59:05,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175237927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:05,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:05,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:59:05,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482314384] [2022-03-03 16:59:05,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:05,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:59:05,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:05,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:59:05,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:05,777 INFO L87 Difference]: Start difference. First operand 11400 states and 32821 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:05,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:05,827 INFO L93 Difference]: Finished difference Result 11167 states and 31220 transitions. [2022-03-03 16:59:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:59:05,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:05,853 INFO L225 Difference]: With dead ends: 11167 [2022-03-03 16:59:05,853 INFO L226 Difference]: Without dead ends: 11167 [2022-03-03 16:59:05,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:05,860 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 135 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:05,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 284 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11167 states. [2022-03-03 16:59:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11167 to 10541. [2022-03-03 16:59:06,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10541 states, 10540 states have (on average 2.8139468690702087) internal successors, (29659), 10540 states have internal predecessors, (29659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:06,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10541 states to 10541 states and 29659 transitions. [2022-03-03 16:59:06,220 INFO L78 Accepts]: Start accepts. Automaton has 10541 states and 29659 transitions. Word has length 101 [2022-03-03 16:59:06,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:06,221 INFO L470 AbstractCegarLoop]: Abstraction has 10541 states and 29659 transitions. [2022-03-03 16:59:06,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:06,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10541 states and 29659 transitions. [2022-03-03 16:59:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:06,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:06,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:06,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 16:59:06,245 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:06,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:06,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1511509720, now seen corresponding path program 1 times [2022-03-03 16:59:06,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:06,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268756341] [2022-03-03 16:59:06,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:06,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:06,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:06,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268756341] [2022-03-03 16:59:06,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268756341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:06,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:06,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:06,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546690221] [2022-03-03 16:59:06,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:06,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:06,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:06,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:06,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:06,381 INFO L87 Difference]: Start difference. First operand 10541 states and 29659 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:06,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:06,730 INFO L93 Difference]: Finished difference Result 13249 states and 36739 transitions. [2022-03-03 16:59:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 16:59:06,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:06,771 INFO L225 Difference]: With dead ends: 13249 [2022-03-03 16:59:06,771 INFO L226 Difference]: Without dead ends: 12532 [2022-03-03 16:59:06,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:59:06,774 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 409 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:06,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2390 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:06,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12532 states. [2022-03-03 16:59:07,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12532 to 10399. [2022-03-03 16:59:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10399 states, 10398 states have (on average 2.8191959992306215) internal successors, (29314), 10398 states have internal predecessors, (29314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10399 states to 10399 states and 29314 transitions. [2022-03-03 16:59:07,042 INFO L78 Accepts]: Start accepts. Automaton has 10399 states and 29314 transitions. Word has length 101 [2022-03-03 16:59:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:07,043 INFO L470 AbstractCegarLoop]: Abstraction has 10399 states and 29314 transitions. [2022-03-03 16:59:07,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:07,043 INFO L276 IsEmpty]: Start isEmpty. Operand 10399 states and 29314 transitions. [2022-03-03 16:59:07,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:07,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:07,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:07,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 16:59:07,059 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:07,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:07,059 INFO L85 PathProgramCache]: Analyzing trace with hash 770227354, now seen corresponding path program 2 times [2022-03-03 16:59:07,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:07,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58747303] [2022-03-03 16:59:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:07,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:07,165 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:07,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58747303] [2022-03-03 16:59:07,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58747303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:07,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:07,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:07,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242604948] [2022-03-03 16:59:07,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:07,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:07,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:07,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:07,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:07,167 INFO L87 Difference]: Start difference. First operand 10399 states and 29314 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:07,452 INFO L93 Difference]: Finished difference Result 11691 states and 32723 transitions. [2022-03-03 16:59:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 16:59:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:07,476 INFO L225 Difference]: With dead ends: 11691 [2022-03-03 16:59:07,477 INFO L226 Difference]: Without dead ends: 11163 [2022-03-03 16:59:07,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:59:07,477 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 206 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:07,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2515 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:07,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11163 states. [2022-03-03 16:59:07,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11163 to 10403. [2022-03-03 16:59:07,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10403 states, 10402 states have (on average 2.818784849067487) internal successors, (29321), 10402 states have internal predecessors, (29321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:07,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10403 states to 10403 states and 29321 transitions. [2022-03-03 16:59:07,713 INFO L78 Accepts]: Start accepts. Automaton has 10403 states and 29321 transitions. Word has length 101 [2022-03-03 16:59:07,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:07,714 INFO L470 AbstractCegarLoop]: Abstraction has 10403 states and 29321 transitions. [2022-03-03 16:59:07,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 10403 states and 29321 transitions. [2022-03-03 16:59:07,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:07,729 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:07,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:07,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 16:59:07,729 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:07,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1737804988, now seen corresponding path program 3 times [2022-03-03 16:59:07,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:07,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013744976] [2022-03-03 16:59:07,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:07,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:07,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:07,816 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:07,816 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013744976] [2022-03-03 16:59:07,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013744976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:07,816 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:07,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:07,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707806319] [2022-03-03 16:59:07,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:07,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:07,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:07,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:07,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:07,817 INFO L87 Difference]: Start difference. First operand 10403 states and 29321 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:08,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:08,041 INFO L93 Difference]: Finished difference Result 11527 states and 32293 transitions. [2022-03-03 16:59:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:08,042 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:08,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:08,063 INFO L225 Difference]: With dead ends: 11527 [2022-03-03 16:59:08,063 INFO L226 Difference]: Without dead ends: 11042 [2022-03-03 16:59:08,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:08,064 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 166 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:08,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 2450 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:08,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-03 16:59:08,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 10407. [2022-03-03 16:59:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10407 states, 10406 states have (on average 2.818374014991351) internal successors, (29328), 10406 states have internal predecessors, (29328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10407 states to 10407 states and 29328 transitions. [2022-03-03 16:59:08,238 INFO L78 Accepts]: Start accepts. Automaton has 10407 states and 29328 transitions. Word has length 101 [2022-03-03 16:59:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:08,238 INFO L470 AbstractCegarLoop]: Abstraction has 10407 states and 29328 transitions. [2022-03-03 16:59:08,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 10407 states and 29328 transitions. [2022-03-03 16:59:08,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:08,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:08,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:08,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 16:59:08,254 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:08,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:08,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1056184334, now seen corresponding path program 4 times [2022-03-03 16:59:08,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:08,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284254882] [2022-03-03 16:59:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:08,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:08,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:08,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:08,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284254882] [2022-03-03 16:59:08,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284254882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:08,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:08,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:08,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668591218] [2022-03-03 16:59:08,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:08,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:08,367 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:08,367 INFO L87 Difference]: Start difference. First operand 10407 states and 29328 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:08,567 INFO L93 Difference]: Finished difference Result 11461 states and 32116 transitions. [2022-03-03 16:59:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:59:08,568 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:08,654 INFO L225 Difference]: With dead ends: 11461 [2022-03-03 16:59:08,654 INFO L226 Difference]: Without dead ends: 10953 [2022-03-03 16:59:08,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:08,655 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 161 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:08,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2076 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:08,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10953 states. [2022-03-03 16:59:08,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10953 to 10381. [2022-03-03 16:59:08,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10381 states, 10380 states have (on average 2.8197495183044317) internal successors, (29269), 10380 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:08,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10381 states to 10381 states and 29269 transitions. [2022-03-03 16:59:08,828 INFO L78 Accepts]: Start accepts. Automaton has 10381 states and 29269 transitions. Word has length 101 [2022-03-03 16:59:08,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:08,828 INFO L470 AbstractCegarLoop]: Abstraction has 10381 states and 29269 transitions. [2022-03-03 16:59:08,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:08,829 INFO L276 IsEmpty]: Start isEmpty. Operand 10381 states and 29269 transitions. [2022-03-03 16:59:08,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:08,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:08,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:08,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 16:59:08,844 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:08,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:08,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1996165324, now seen corresponding path program 5 times [2022-03-03 16:59:08,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:08,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926674458] [2022-03-03 16:59:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:08,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:08,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:08,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926674458] [2022-03-03 16:59:08,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926674458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:08,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:08,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:08,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484822568] [2022-03-03 16:59:08,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:08,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:08,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:08,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:08,934 INFO L87 Difference]: Start difference. First operand 10381 states and 29269 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:09,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:09,169 INFO L93 Difference]: Finished difference Result 11569 states and 32417 transitions. [2022-03-03 16:59:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:09,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:09,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:09,195 INFO L225 Difference]: With dead ends: 11569 [2022-03-03 16:59:09,195 INFO L226 Difference]: Without dead ends: 11084 [2022-03-03 16:59:09,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:09,196 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 114 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:09,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2161 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11084 states. [2022-03-03 16:59:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11084 to 10393. [2022-03-03 16:59:09,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.819284064665127) internal successors, (29298), 10392 states have internal predecessors, (29298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29298 transitions. [2022-03-03 16:59:09,414 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29298 transitions. Word has length 101 [2022-03-03 16:59:09,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:09,414 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29298 transitions. [2022-03-03 16:59:09,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29298 transitions. [2022-03-03 16:59:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:09,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:09,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:09,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 16:59:09,430 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1314544670, now seen corresponding path program 6 times [2022-03-03 16:59:09,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:09,431 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364508705] [2022-03-03 16:59:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:09,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:09,539 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:09,539 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364508705] [2022-03-03 16:59:09,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364508705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:09,539 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:09,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:09,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714324469] [2022-03-03 16:59:09,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:09,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:09,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:09,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:09,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:09,541 INFO L87 Difference]: Start difference. First operand 10393 states and 29298 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:09,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:09,786 INFO L93 Difference]: Finished difference Result 11527 states and 32306 transitions. [2022-03-03 16:59:09,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:09,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:09,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:09,805 INFO L225 Difference]: With dead ends: 11527 [2022-03-03 16:59:09,805 INFO L226 Difference]: Without dead ends: 11041 [2022-03-03 16:59:09,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:09,806 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 106 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:09,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 2087 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:09,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11041 states. [2022-03-03 16:59:09,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11041 to 10389. [2022-03-03 16:59:09,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8193107431651905) internal successors, (29287), 10388 states have internal predecessors, (29287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29287 transitions. [2022-03-03 16:59:09,974 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29287 transitions. Word has length 101 [2022-03-03 16:59:09,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:09,975 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29287 transitions. [2022-03-03 16:59:09,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:09,975 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29287 transitions. [2022-03-03 16:59:09,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:09,990 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:09,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:09,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 16:59:09,990 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:09,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash -163430860, now seen corresponding path program 7 times [2022-03-03 16:59:09,991 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:09,991 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277768145] [2022-03-03 16:59:09,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:09,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:10,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:10,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277768145] [2022-03-03 16:59:10,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277768145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:10,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:10,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:10,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431530164] [2022-03-03 16:59:10,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:10,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:10,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:10,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:10,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:10,092 INFO L87 Difference]: Start difference. First operand 10389 states and 29287 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:10,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:10,324 INFO L93 Difference]: Finished difference Result 11627 states and 32565 transitions. [2022-03-03 16:59:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:59:10,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:10,343 INFO L225 Difference]: With dead ends: 11627 [2022-03-03 16:59:10,344 INFO L226 Difference]: Without dead ends: 11101 [2022-03-03 16:59:10,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:10,344 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 144 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:10,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1717 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:10,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2022-03-03 16:59:10,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 10385. [2022-03-03 16:59:10,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10385 states, 10384 states have (on average 2.819337442218798) internal successors, (29276), 10384 states have internal predecessors, (29276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10385 states to 10385 states and 29276 transitions. [2022-03-03 16:59:10,507 INFO L78 Accepts]: Start accepts. Automaton has 10385 states and 29276 transitions. Word has length 101 [2022-03-03 16:59:10,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:10,507 INFO L470 AbstractCegarLoop]: Abstraction has 10385 states and 29276 transitions. [2022-03-03 16:59:10,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 10385 states and 29276 transitions. [2022-03-03 16:59:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:10,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:10,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:10,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 16:59:10,522 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:10,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:10,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1465189348, now seen corresponding path program 8 times [2022-03-03 16:59:10,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:10,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803424955] [2022-03-03 16:59:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:10,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:10,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:10,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803424955] [2022-03-03 16:59:10,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803424955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:10,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:10,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:10,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676717877] [2022-03-03 16:59:10,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:10,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:10,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:10,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:10,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:10,621 INFO L87 Difference]: Start difference. First operand 10385 states and 29276 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:10,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:10,884 INFO L93 Difference]: Finished difference Result 11677 states and 32685 transitions. [2022-03-03 16:59:10,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:59:10,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:10,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:10,906 INFO L225 Difference]: With dead ends: 11677 [2022-03-03 16:59:10,906 INFO L226 Difference]: Without dead ends: 11149 [2022-03-03 16:59:10,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:10,907 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 159 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:10,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1711 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:10,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11149 states. [2022-03-03 16:59:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11149 to 10389. [2022-03-03 16:59:11,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10389 states, 10388 states have (on average 2.8189256834809395) internal successors, (29283), 10388 states have internal predecessors, (29283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10389 states to 10389 states and 29283 transitions. [2022-03-03 16:59:11,112 INFO L78 Accepts]: Start accepts. Automaton has 10389 states and 29283 transitions. Word has length 101 [2022-03-03 16:59:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:11,113 INFO L470 AbstractCegarLoop]: Abstraction has 10389 states and 29283 transitions. [2022-03-03 16:59:11,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:11,113 INFO L276 IsEmpty]: Start isEmpty. Operand 10389 states and 29283 transitions. [2022-03-03 16:59:11,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:11,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:11,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:11,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 16:59:11,128 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1042842994, now seen corresponding path program 9 times [2022-03-03 16:59:11,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:11,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986758172] [2022-03-03 16:59:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:11,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:11,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:11,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986758172] [2022-03-03 16:59:11,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986758172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:11,212 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:11,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:11,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738961272] [2022-03-03 16:59:11,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:11,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:11,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:11,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:11,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:11,213 INFO L87 Difference]: Start difference. First operand 10389 states and 29283 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:11,434 INFO L93 Difference]: Finished difference Result 11521 states and 32277 transitions. [2022-03-03 16:59:11,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:11,434 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:11,454 INFO L225 Difference]: With dead ends: 11521 [2022-03-03 16:59:11,454 INFO L226 Difference]: Without dead ends: 11036 [2022-03-03 16:59:11,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:11,455 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 122 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:11,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 2159 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:11,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11036 states. [2022-03-03 16:59:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11036 to 10393. [2022-03-03 16:59:11,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10393 states, 10392 states have (on average 2.8185142417244036) internal successors, (29290), 10392 states have internal predecessors, (29290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10393 states to 10393 states and 29290 transitions. [2022-03-03 16:59:11,647 INFO L78 Accepts]: Start accepts. Automaton has 10393 states and 29290 transitions. Word has length 101 [2022-03-03 16:59:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:11,647 INFO L470 AbstractCegarLoop]: Abstraction has 10393 states and 29290 transitions. [2022-03-03 16:59:11,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 10393 states and 29290 transitions. [2022-03-03 16:59:11,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:11,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:11,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:11,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 16:59:11,662 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:11,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash -361222340, now seen corresponding path program 10 times [2022-03-03 16:59:11,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:11,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666430574] [2022-03-03 16:59:11,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:11,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:11,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:11,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666430574] [2022-03-03 16:59:11,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666430574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:11,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:11,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:11,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213139190] [2022-03-03 16:59:11,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:11,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:11,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:11,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:11,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:11,756 INFO L87 Difference]: Start difference. First operand 10393 states and 29290 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:11,981 INFO L93 Difference]: Finished difference Result 11447 states and 32078 transitions. [2022-03-03 16:59:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:11,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:12,002 INFO L225 Difference]: With dead ends: 11447 [2022-03-03 16:59:12,003 INFO L226 Difference]: Without dead ends: 10935 [2022-03-03 16:59:12,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:12,004 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 109 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:12,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 2126 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10935 states. [2022-03-03 16:59:12,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10935 to 10363. [2022-03-03 16:59:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10363 states, 10362 states have (on average 2.820304960432349) internal successors, (29224), 10362 states have internal predecessors, (29224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:12,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 29224 transitions. [2022-03-03 16:59:12,184 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 29224 transitions. Word has length 101 [2022-03-03 16:59:12,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:12,184 INFO L470 AbstractCegarLoop]: Abstraction has 10363 states and 29224 transitions. [2022-03-03 16:59:12,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 29224 transitions. [2022-03-03 16:59:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:12,198 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:12,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:12,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 16:59:12,198 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:12,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:12,198 INFO L85 PathProgramCache]: Analyzing trace with hash -774742998, now seen corresponding path program 11 times [2022-03-03 16:59:12,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:12,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090745977] [2022-03-03 16:59:12,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:12,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:12,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:12,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090745977] [2022-03-03 16:59:12,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090745977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:12,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:12,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:12,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407892533] [2022-03-03 16:59:12,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:12,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:12,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:12,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:12,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:12,279 INFO L87 Difference]: Start difference. First operand 10363 states and 29224 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:12,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:12,517 INFO L93 Difference]: Finished difference Result 11966 states and 33522 transitions. [2022-03-03 16:59:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:12,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:12,539 INFO L225 Difference]: With dead ends: 11966 [2022-03-03 16:59:12,539 INFO L226 Difference]: Without dead ends: 11481 [2022-03-03 16:59:12,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:12,542 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 128 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:12,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 2162 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11481 states. [2022-03-03 16:59:12,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11481 to 10383. [2022-03-03 16:59:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8197842419572337) internal successors, (29275), 10382 states have internal predecessors, (29275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:12,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29275 transitions. [2022-03-03 16:59:12,723 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29275 transitions. Word has length 101 [2022-03-03 16:59:12,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:12,723 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29275 transitions. [2022-03-03 16:59:12,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29275 transitions. [2022-03-03 16:59:12,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:12,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:12,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:12,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 16:59:12,738 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:12,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:12,738 INFO L85 PathProgramCache]: Analyzing trace with hash -93122344, now seen corresponding path program 12 times [2022-03-03 16:59:12,738 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:12,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033390172] [2022-03-03 16:59:12,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:12,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:12,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:12,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:12,814 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033390172] [2022-03-03 16:59:12,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033390172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:12,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:12,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:12,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72958708] [2022-03-03 16:59:12,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:12,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:12,814 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:12,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:12,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:12,815 INFO L87 Difference]: Start difference. First operand 10383 states and 29275 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:13,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:13,041 INFO L93 Difference]: Finished difference Result 11924 states and 33411 transitions. [2022-03-03 16:59:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:13,041 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:13,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:13,060 INFO L225 Difference]: With dead ends: 11924 [2022-03-03 16:59:13,061 INFO L226 Difference]: Without dead ends: 11438 [2022-03-03 16:59:13,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:13,061 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 118 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:13,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 2342 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-03-03 16:59:13,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 10379. [2022-03-03 16:59:13,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.8198111389477742) internal successors, (29264), 10378 states have internal predecessors, (29264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:13,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29264 transitions. [2022-03-03 16:59:13,209 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29264 transitions. Word has length 101 [2022-03-03 16:59:13,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:13,209 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29264 transitions. [2022-03-03 16:59:13,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29264 transitions. [2022-03-03 16:59:13,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:13,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:13,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:13,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 16:59:13,223 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:13,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1057991466, now seen corresponding path program 13 times [2022-03-03 16:59:13,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:13,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222104978] [2022-03-03 16:59:13,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:13,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:13,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:13,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222104978] [2022-03-03 16:59:13,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222104978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:13,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:13,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:13,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908395796] [2022-03-03 16:59:13,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:13,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:13,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:13,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:13,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:13,315 INFO L87 Difference]: Start difference. First operand 10379 states and 29264 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:13,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:13,544 INFO L93 Difference]: Finished difference Result 12056 states and 33758 transitions. [2022-03-03 16:59:13,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:59:13,545 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:13,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:13,566 INFO L225 Difference]: With dead ends: 12056 [2022-03-03 16:59:13,566 INFO L226 Difference]: Without dead ends: 11530 [2022-03-03 16:59:13,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:13,567 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 156 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:13,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 1689 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-03-03 16:59:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10375. [2022-03-03 16:59:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10375 states, 10374 states have (on average 2.8198380566801617) internal successors, (29253), 10374 states have internal predecessors, (29253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10375 states to 10375 states and 29253 transitions. [2022-03-03 16:59:13,738 INFO L78 Accepts]: Start accepts. Automaton has 10375 states and 29253 transitions. Word has length 101 [2022-03-03 16:59:13,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:13,739 INFO L470 AbstractCegarLoop]: Abstraction has 10375 states and 29253 transitions. [2022-03-03 16:59:13,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:13,739 INFO L276 IsEmpty]: Start isEmpty. Operand 10375 states and 29253 transitions. [2022-03-03 16:59:13,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:13,753 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:13,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:13,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 16:59:13,753 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:13,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1608355622, now seen corresponding path program 14 times [2022-03-03 16:59:13,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:13,754 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744698275] [2022-03-03 16:59:13,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:13,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:13,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:13,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744698275] [2022-03-03 16:59:13,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744698275] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:13,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:13,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:13,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822312942] [2022-03-03 16:59:13,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:13,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:13,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:13,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:13,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:13,830 INFO L87 Difference]: Start difference. First operand 10375 states and 29253 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:14,044 INFO L93 Difference]: Finished difference Result 12058 states and 33746 transitions. [2022-03-03 16:59:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:59:14,044 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:14,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:14,063 INFO L225 Difference]: With dead ends: 12058 [2022-03-03 16:59:14,063 INFO L226 Difference]: Without dead ends: 11530 [2022-03-03 16:59:14,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:14,064 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 173 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:14,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 1981 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11530 states. [2022-03-03 16:59:14,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11530 to 10379. [2022-03-03 16:59:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-03-03 16:59:14,220 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-03-03 16:59:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:14,221 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-03-03 16:59:14,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-03-03 16:59:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:14,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:14,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:14,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 16:59:14,235 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:14,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:14,236 INFO L85 PathProgramCache]: Analyzing trace with hash 178579332, now seen corresponding path program 15 times [2022-03-03 16:59:14,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:14,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939799168] [2022-03-03 16:59:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:14,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:14,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:14,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939799168] [2022-03-03 16:59:14,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939799168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:14,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:14,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:14,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997030343] [2022-03-03 16:59:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:14,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:14,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:14,315 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:14,537 INFO L93 Difference]: Finished difference Result 11926 states and 33404 transitions. [2022-03-03 16:59:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:14,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:14,557 INFO L225 Difference]: With dead ends: 11926 [2022-03-03 16:59:14,558 INFO L226 Difference]: Without dead ends: 11441 [2022-03-03 16:59:14,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:14,558 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 144 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:14,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 1925 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:14,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11441 states. [2022-03-03 16:59:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11441 to 10383. [2022-03-03 16:59:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8190136775187824) internal successors, (29267), 10382 states have internal predecessors, (29267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29267 transitions. [2022-03-03 16:59:14,731 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29267 transitions. Word has length 101 [2022-03-03 16:59:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:14,732 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29267 transitions. [2022-03-03 16:59:14,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:14,732 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29267 transitions. [2022-03-03 16:59:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:14,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:14,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:14,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 16:59:14,745 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:14,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash 860199986, now seen corresponding path program 16 times [2022-03-03 16:59:14,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:14,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929744803] [2022-03-03 16:59:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:14,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:14,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:14,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929744803] [2022-03-03 16:59:14,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929744803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:14,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:14,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:14,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781551722] [2022-03-03 16:59:14,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:14,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:14,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:14,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:14,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:14,830 INFO L87 Difference]: Start difference. First operand 10383 states and 29267 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:15,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:15,030 INFO L93 Difference]: Finished difference Result 11876 states and 33271 transitions. [2022-03-03 16:59:15,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:15,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:15,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:15,048 INFO L225 Difference]: With dead ends: 11876 [2022-03-03 16:59:15,048 INFO L226 Difference]: Without dead ends: 11382 [2022-03-03 16:59:15,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:59:15,050 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 117 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:15,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 2143 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:15,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11382 states. [2022-03-03 16:59:15,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11382 to 10371. [2022-03-03 16:59:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10371 states, 10370 states have (on average 2.819864995178399) internal successors, (29242), 10370 states have internal predecessors, (29242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10371 states to 10371 states and 29242 transitions. [2022-03-03 16:59:15,253 INFO L78 Accepts]: Start accepts. Automaton has 10371 states and 29242 transitions. Word has length 101 [2022-03-03 16:59:15,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:15,253 INFO L470 AbstractCegarLoop]: Abstraction has 10371 states and 29242 transitions. [2022-03-03 16:59:15,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 10371 states and 29242 transitions. [2022-03-03 16:59:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:15,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:15,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:15,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 16:59:15,266 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:15,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:15,267 INFO L85 PathProgramCache]: Analyzing trace with hash 122641612, now seen corresponding path program 17 times [2022-03-03 16:59:15,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:15,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700797212] [2022-03-03 16:59:15,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:15,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:15,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:15,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700797212] [2022-03-03 16:59:15,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700797212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:15,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:15,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:15,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179333961] [2022-03-03 16:59:15,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:15,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:15,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:15,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:15,342 INFO L87 Difference]: Start difference. First operand 10371 states and 29242 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:15,543 INFO L93 Difference]: Finished difference Result 11870 states and 33254 transitions. [2022-03-03 16:59:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:59:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:15,562 INFO L225 Difference]: With dead ends: 11870 [2022-03-03 16:59:15,562 INFO L226 Difference]: Without dead ends: 11385 [2022-03-03 16:59:15,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:15,563 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 206 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:15,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2051 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:15,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11385 states. [2022-03-03 16:59:15,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11385 to 10387. [2022-03-03 16:59:15,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10387 states, 10386 states have (on average 2.819372231850568) internal successors, (29282), 10386 states have internal predecessors, (29282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:15,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10387 states to 10387 states and 29282 transitions. [2022-03-03 16:59:15,705 INFO L78 Accepts]: Start accepts. Automaton has 10387 states and 29282 transitions. Word has length 101 [2022-03-03 16:59:15,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:15,705 INFO L470 AbstractCegarLoop]: Abstraction has 10387 states and 29282 transitions. [2022-03-03 16:59:15,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 10387 states and 29282 transitions. [2022-03-03 16:59:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:15,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:15,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:15,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 16:59:15,719 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash 804262266, now seen corresponding path program 18 times [2022-03-03 16:59:15,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:15,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443036962] [2022-03-03 16:59:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:15,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:15,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:15,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:15,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443036962] [2022-03-03 16:59:15,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443036962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:15,812 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:15,812 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:15,812 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708711614] [2022-03-03 16:59:15,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:15,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:15,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:15,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:15,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:15,813 INFO L87 Difference]: Start difference. First operand 10387 states and 29282 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:16,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:16,023 INFO L93 Difference]: Finished difference Result 11832 states and 33154 transitions. [2022-03-03 16:59:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:16,024 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:16,043 INFO L225 Difference]: With dead ends: 11832 [2022-03-03 16:59:16,043 INFO L226 Difference]: Without dead ends: 11346 [2022-03-03 16:59:16,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:16,044 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 220 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:16,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2283 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:16,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11346 states. [2022-03-03 16:59:16,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11346 to 10383. [2022-03-03 16:59:16,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 10382 states have (on average 2.8193989597380082) internal successors, (29271), 10382 states have internal predecessors, (29271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:16,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 29271 transitions. [2022-03-03 16:59:16,188 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 29271 transitions. Word has length 101 [2022-03-03 16:59:16,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:16,188 INFO L470 AbstractCegarLoop]: Abstraction has 10383 states and 29271 transitions. [2022-03-03 16:59:16,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:16,188 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 29271 transitions. [2022-03-03 16:59:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:16,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:16,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:16,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 16:59:16,202 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:16,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:16,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1955376076, now seen corresponding path program 19 times [2022-03-03 16:59:16,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:16,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779509142] [2022-03-03 16:59:16,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:16,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:16,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:16,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779509142] [2022-03-03 16:59:16,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779509142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:16,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:16,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:16,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274782321] [2022-03-03 16:59:16,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:16,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:16,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:16,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:16,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:16,291 INFO L87 Difference]: Start difference. First operand 10383 states and 29271 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:16,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:16,548 INFO L93 Difference]: Finished difference Result 11868 states and 33249 transitions. [2022-03-03 16:59:16,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 16:59:16,548 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:16,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:16,568 INFO L225 Difference]: With dead ends: 11868 [2022-03-03 16:59:16,568 INFO L226 Difference]: Without dead ends: 11342 [2022-03-03 16:59:16,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:59:16,569 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 250 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:16,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 2301 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:16,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2022-03-03 16:59:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 10379. [2022-03-03 16:59:16,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10379 states, 10378 states have (on average 2.819425708228946) internal successors, (29260), 10378 states have internal predecessors, (29260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10379 states to 10379 states and 29260 transitions. [2022-03-03 16:59:16,755 INFO L78 Accepts]: Start accepts. Automaton has 10379 states and 29260 transitions. Word has length 101 [2022-03-03 16:59:16,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:16,755 INFO L470 AbstractCegarLoop]: Abstraction has 10379 states and 29260 transitions. [2022-03-03 16:59:16,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:16,755 INFO L276 IsEmpty]: Start isEmpty. Operand 10379 states and 29260 transitions. [2022-03-03 16:59:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:16,770 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:16,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:16,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 16:59:16,770 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:16,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:16,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1147543880, now seen corresponding path program 20 times [2022-03-03 16:59:16,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:16,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841573187] [2022-03-03 16:59:16,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:16,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:16,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:16,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:16,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841573187] [2022-03-03 16:59:16,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841573187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:16,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:16,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:16,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483670305] [2022-03-03 16:59:16,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:16,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:16,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:16,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:16,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:16,846 INFO L87 Difference]: Start difference. First operand 10379 states and 29260 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:17,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:17,130 INFO L93 Difference]: Finished difference Result 13198 states and 36719 transitions. [2022-03-03 16:59:17,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 16:59:17,130 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:17,154 INFO L225 Difference]: With dead ends: 13198 [2022-03-03 16:59:17,154 INFO L226 Difference]: Without dead ends: 12492 [2022-03-03 16:59:17,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:59:17,155 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 467 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:17,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 2775 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2022-03-03 16:59:17,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 10275. [2022-03-03 16:59:17,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10275 states, 10274 states have (on average 2.8221724742067353) internal successors, (28995), 10274 states have internal predecessors, (28995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10275 states to 10275 states and 28995 transitions. [2022-03-03 16:59:17,330 INFO L78 Accepts]: Start accepts. Automaton has 10275 states and 28995 transitions. Word has length 101 [2022-03-03 16:59:17,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:17,331 INFO L470 AbstractCegarLoop]: Abstraction has 10275 states and 28995 transitions. [2022-03-03 16:59:17,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:17,331 INFO L276 IsEmpty]: Start isEmpty. Operand 10275 states and 28995 transitions. [2022-03-03 16:59:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:17,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:17,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:17,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 16:59:17,345 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1337178174, now seen corresponding path program 1 times [2022-03-03 16:59:17,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:17,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653505719] [2022-03-03 16:59:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:17,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:17,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:17,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653505719] [2022-03-03 16:59:17,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653505719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:17,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:17,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:59:17,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887769439] [2022-03-03 16:59:17,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:17,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:59:17,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:17,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:59:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:17,366 INFO L87 Difference]: Start difference. First operand 10275 states and 28995 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:17,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:17,401 INFO L93 Difference]: Finished difference Result 9393 states and 26084 transitions. [2022-03-03 16:59:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:59:17,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:17,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:17,417 INFO L225 Difference]: With dead ends: 9393 [2022-03-03 16:59:17,417 INFO L226 Difference]: Without dead ends: 9393 [2022-03-03 16:59:17,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:17,420 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 130 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:17,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 213 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:17,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9393 states. [2022-03-03 16:59:17,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9393 to 9393. [2022-03-03 16:59:17,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9393 states, 9392 states have (on average 2.7772572402044293) internal successors, (26084), 9392 states have internal predecessors, (26084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 26084 transitions. [2022-03-03 16:59:17,558 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 26084 transitions. Word has length 101 [2022-03-03 16:59:17,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:17,558 INFO L470 AbstractCegarLoop]: Abstraction has 9393 states and 26084 transitions. [2022-03-03 16:59:17,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:17,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 26084 transitions. [2022-03-03 16:59:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:17,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:17,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:17,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 16:59:17,571 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:17,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:17,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1661801566, now seen corresponding path program 1 times [2022-03-03 16:59:17,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:17,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471497485] [2022-03-03 16:59:17,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:17,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:17,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:17,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:17,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471497485] [2022-03-03 16:59:17,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471497485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:17,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:17,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:17,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679544431] [2022-03-03 16:59:17,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:17,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:17,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:17,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:17,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:17,646 INFO L87 Difference]: Start difference. First operand 9393 states and 26084 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:17,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:17,919 INFO L93 Difference]: Finished difference Result 10497 states and 28835 transitions. [2022-03-03 16:59:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 16:59:17,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:17,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:17,934 INFO L225 Difference]: With dead ends: 10497 [2022-03-03 16:59:17,934 INFO L226 Difference]: Without dead ends: 9786 [2022-03-03 16:59:17,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-03 16:59:17,934 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 247 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:17,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 1490 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:17,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9786 states. [2022-03-03 16:59:18,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9786 to 9204. [2022-03-03 16:59:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9204 states, 9203 states have (on average 2.783440182549169) internal successors, (25616), 9203 states have internal predecessors, (25616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:18,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 25616 transitions. [2022-03-03 16:59:18,087 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 25616 transitions. Word has length 101 [2022-03-03 16:59:18,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:18,087 INFO L470 AbstractCegarLoop]: Abstraction has 9204 states and 25616 transitions. [2022-03-03 16:59:18,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 25616 transitions. [2022-03-03 16:59:18,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:18,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:18,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:18,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 16:59:18,099 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:18,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:18,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2035505446, now seen corresponding path program 2 times [2022-03-03 16:59:18,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:18,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664255457] [2022-03-03 16:59:18,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:18,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:18,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:18,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664255457] [2022-03-03 16:59:18,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664255457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:18,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:18,184 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:18,184 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747163858] [2022-03-03 16:59:18,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:18,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:18,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:18,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:18,185 INFO L87 Difference]: Start difference. First operand 9204 states and 25616 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:18,449 INFO L93 Difference]: Finished difference Result 10091 states and 27888 transitions. [2022-03-03 16:59:18,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 16:59:18,449 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:18,463 INFO L225 Difference]: With dead ends: 10091 [2022-03-03 16:59:18,463 INFO L226 Difference]: Without dead ends: 9569 [2022-03-03 16:59:18,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:59:18,464 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 145 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:18,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 2147 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:18,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2022-03-03 16:59:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9208. [2022-03-03 16:59:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 2.7829912023460412) internal successors, (25623), 9207 states have internal predecessors, (25623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 25623 transitions. [2022-03-03 16:59:18,606 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 25623 transitions. Word has length 101 [2022-03-03 16:59:18,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:18,607 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 25623 transitions. [2022-03-03 16:59:18,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:18,607 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 25623 transitions. [2022-03-03 16:59:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:18,618 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:18,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:18,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 16:59:18,619 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:18,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:18,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1953590340, now seen corresponding path program 3 times [2022-03-03 16:59:18,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:18,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675649322] [2022-03-03 16:59:18,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:18,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:18,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:18,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:18,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675649322] [2022-03-03 16:59:18,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675649322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:18,711 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:18,711 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:18,711 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167888126] [2022-03-03 16:59:18,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:18,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:18,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:18,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:18,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:18,712 INFO L87 Difference]: Start difference. First operand 9208 states and 25623 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:18,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:18,897 INFO L93 Difference]: Finished difference Result 9966 states and 27559 transitions. [2022-03-03 16:59:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:18,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:18,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:18,911 INFO L225 Difference]: With dead ends: 9966 [2022-03-03 16:59:18,912 INFO L226 Difference]: Without dead ends: 9487 [2022-03-03 16:59:18,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:18,912 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 103 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:18,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 1673 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2022-03-03 16:59:19,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9212. [2022-03-03 16:59:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9212 states, 9211 states have (on average 2.782542612094235) internal successors, (25630), 9211 states have internal predecessors, (25630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9212 states to 9212 states and 25630 transitions. [2022-03-03 16:59:19,054 INFO L78 Accepts]: Start accepts. Automaton has 9212 states and 25630 transitions. Word has length 101 [2022-03-03 16:59:19,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:19,054 INFO L470 AbstractCegarLoop]: Abstraction has 9212 states and 25630 transitions. [2022-03-03 16:59:19,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand 9212 states and 25630 transitions. [2022-03-03 16:59:19,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:19,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:19,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:19,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 16:59:19,067 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:19,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:19,067 INFO L85 PathProgramCache]: Analyzing trace with hash -713853838, now seen corresponding path program 4 times [2022-03-03 16:59:19,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:19,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639960399] [2022-03-03 16:59:19,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:19,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:19,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:19,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639960399] [2022-03-03 16:59:19,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639960399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:19,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:19,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:19,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942099979] [2022-03-03 16:59:19,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:19,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:19,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:19,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:19,144 INFO L87 Difference]: Start difference. First operand 9212 states and 25630 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:19,325 INFO L93 Difference]: Finished difference Result 9908 states and 27404 transitions. [2022-03-03 16:59:19,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:59:19,326 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:19,339 INFO L225 Difference]: With dead ends: 9908 [2022-03-03 16:59:19,339 INFO L226 Difference]: Without dead ends: 9406 [2022-03-03 16:59:19,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:19,340 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 91 mSDsluCounter, 1185 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:19,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1402 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:19,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2022-03-03 16:59:19,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 9186. [2022-03-03 16:59:19,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9185 states have (on average 2.7839956450734893) internal successors, (25571), 9185 states have internal predecessors, (25571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 25571 transitions. [2022-03-03 16:59:19,480 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 25571 transitions. Word has length 101 [2022-03-03 16:59:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:19,480 INFO L470 AbstractCegarLoop]: Abstraction has 9186 states and 25571 transitions. [2022-03-03 16:59:19,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 25571 transitions. [2022-03-03 16:59:19,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:19,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:19,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:19,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 16:59:19,492 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:19,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:19,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1508449932, now seen corresponding path program 5 times [2022-03-03 16:59:19,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:19,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727935311] [2022-03-03 16:59:19,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:19,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:19,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:19,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727935311] [2022-03-03 16:59:19,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727935311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:19,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:19,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:19,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273831677] [2022-03-03 16:59:19,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:19,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:19,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:19,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:19,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:19,597 INFO L87 Difference]: Start difference. First operand 9186 states and 25571 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:19,775 INFO L93 Difference]: Finished difference Result 10016 states and 27705 transitions. [2022-03-03 16:59:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:19,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:19,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:19,789 INFO L225 Difference]: With dead ends: 10016 [2022-03-03 16:59:19,790 INFO L226 Difference]: Without dead ends: 9537 [2022-03-03 16:59:19,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-03 16:59:19,790 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 99 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:19,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1616 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2022-03-03 16:59:19,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 9198. [2022-03-03 16:59:19,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7835163640317493) internal successors, (25600), 9197 states have internal predecessors, (25600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25600 transitions. [2022-03-03 16:59:19,928 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25600 transitions. Word has length 101 [2022-03-03 16:59:19,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:19,928 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25600 transitions. [2022-03-03 16:59:19,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25600 transitions. [2022-03-03 16:59:19,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:19,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:19,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:19,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 16:59:19,939 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:19,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:19,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1158994246, now seen corresponding path program 6 times [2022-03-03 16:59:19,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:19,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822633603] [2022-03-03 16:59:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:19,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:20,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:20,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:20,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822633603] [2022-03-03 16:59:20,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822633603] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:20,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:20,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:20,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125224273] [2022-03-03 16:59:20,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:20,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:20,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:20,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:20,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:20,019 INFO L87 Difference]: Start difference. First operand 9198 states and 25600 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:20,194 INFO L93 Difference]: Finished difference Result 9974 states and 27594 transitions. [2022-03-03 16:59:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:20,194 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:20,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:20,209 INFO L225 Difference]: With dead ends: 9974 [2022-03-03 16:59:20,210 INFO L226 Difference]: Without dead ends: 9494 [2022-03-03 16:59:20,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:20,210 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 87 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:20,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1565 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:20,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2022-03-03 16:59:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 9194. [2022-03-03 16:59:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.783530947460024) internal successors, (25589), 9193 states have internal predecessors, (25589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:20,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25589 transitions. [2022-03-03 16:59:20,338 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25589 transitions. Word has length 101 [2022-03-03 16:59:20,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:20,338 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25589 transitions. [2022-03-03 16:59:20,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:20,338 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25589 transitions. [2022-03-03 16:59:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:20,350 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:20,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:20,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 16:59:20,350 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:20,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:20,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2014915710, now seen corresponding path program 7 times [2022-03-03 16:59:20,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:20,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810750127] [2022-03-03 16:59:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:20,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:20,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:20,439 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:20,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810750127] [2022-03-03 16:59:20,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810750127] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:20,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:20,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:20,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579120293] [2022-03-03 16:59:20,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:20,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:20,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:20,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:20,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:20,441 INFO L87 Difference]: Start difference. First operand 9194 states and 25589 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:20,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:20,652 INFO L93 Difference]: Finished difference Result 10122 states and 27981 transitions. [2022-03-03 16:59:20,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:59:20,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:20,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:20,667 INFO L225 Difference]: With dead ends: 10122 [2022-03-03 16:59:20,667 INFO L226 Difference]: Without dead ends: 9602 [2022-03-03 16:59:20,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:20,668 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 142 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:20,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1444 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9602 states. [2022-03-03 16:59:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9602 to 9190. [2022-03-03 16:59:20,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9190 states, 9189 states have (on average 2.783545543584721) internal successors, (25578), 9189 states have internal predecessors, (25578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:20,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9190 states to 9190 states and 25578 transitions. [2022-03-03 16:59:20,787 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 25578 transitions. Word has length 101 [2022-03-03 16:59:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:20,787 INFO L470 AbstractCegarLoop]: Abstraction has 9190 states and 25578 transitions. [2022-03-03 16:59:20,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 25578 transitions. [2022-03-03 16:59:20,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:20,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:20,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:20,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 16:59:20,798 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:20,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:20,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1352894776, now seen corresponding path program 8 times [2022-03-03 16:59:20,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:20,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939495490] [2022-03-03 16:59:20,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:20,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:20,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:20,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:20,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939495490] [2022-03-03 16:59:20,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939495490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:20,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:20,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:20,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830178986] [2022-03-03 16:59:20,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:20,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:20,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:20,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:20,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:20,872 INFO L87 Difference]: Start difference. First operand 9190 states and 25578 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:21,098 INFO L93 Difference]: Finished difference Result 10077 states and 27850 transitions. [2022-03-03 16:59:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:59:21,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:21,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:21,116 INFO L225 Difference]: With dead ends: 10077 [2022-03-03 16:59:21,116 INFO L226 Difference]: Without dead ends: 9555 [2022-03-03 16:59:21,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-03 16:59:21,117 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 130 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:21,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 2039 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:21,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9555 states. [2022-03-03 16:59:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9555 to 9194. [2022-03-03 16:59:21,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9194 states, 9193 states have (on average 2.7830958337865765) internal successors, (25585), 9193 states have internal predecessors, (25585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9194 states to 9194 states and 25585 transitions. [2022-03-03 16:59:21,243 INFO L78 Accepts]: Start accepts. Automaton has 9194 states and 25585 transitions. Word has length 101 [2022-03-03 16:59:21,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:21,243 INFO L470 AbstractCegarLoop]: Abstraction has 9194 states and 25585 transitions. [2022-03-03 16:59:21,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9194 states and 25585 transitions. [2022-03-03 16:59:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:21,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:21,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:21,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 16:59:21,255 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:21,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1047023266, now seen corresponding path program 9 times [2022-03-03 16:59:21,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:21,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180996230] [2022-03-03 16:59:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:21,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:21,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:21,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180996230] [2022-03-03 16:59:21,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180996230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:21,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:21,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:21,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995660197] [2022-03-03 16:59:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:21,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:21,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:21,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:21,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:21,335 INFO L87 Difference]: Start difference. First operand 9194 states and 25585 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:21,532 INFO L93 Difference]: Finished difference Result 9960 states and 27543 transitions. [2022-03-03 16:59:21,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:21,533 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:21,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:21,546 INFO L225 Difference]: With dead ends: 9960 [2022-03-03 16:59:21,546 INFO L226 Difference]: Without dead ends: 9481 [2022-03-03 16:59:21,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:21,547 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 99 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:21,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1995 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:21,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9481 states. [2022-03-03 16:59:21,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9481 to 9198. [2022-03-03 16:59:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9198 states, 9197 states have (on average 2.7826465151679898) internal successors, (25592), 9197 states have internal predecessors, (25592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9198 states to 9198 states and 25592 transitions. [2022-03-03 16:59:21,662 INFO L78 Accepts]: Start accepts. Automaton has 9198 states and 25592 transitions. Word has length 101 [2022-03-03 16:59:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:21,662 INFO L470 AbstractCegarLoop]: Abstraction has 9198 states and 25592 transitions. [2022-03-03 16:59:21,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 9198 states and 25592 transitions. [2022-03-03 16:59:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:21,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:21,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:21,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 16:59:21,674 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:21,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:21,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1620420912, now seen corresponding path program 10 times [2022-03-03 16:59:21,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:21,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046591051] [2022-03-03 16:59:21,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:21,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:21,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:21,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046591051] [2022-03-03 16:59:21,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046591051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:21,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:21,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:21,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421535635] [2022-03-03 16:59:21,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:21,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:21,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:21,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:21,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:21,781 INFO L87 Difference]: Start difference. First operand 9198 states and 25592 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:21,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:21,970 INFO L93 Difference]: Finished difference Result 9894 states and 27366 transitions. [2022-03-03 16:59:21,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:21,970 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:21,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:21,984 INFO L225 Difference]: With dead ends: 9894 [2022-03-03 16:59:21,984 INFO L226 Difference]: Without dead ends: 9388 [2022-03-03 16:59:21,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:21,985 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 85 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:21,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 1787 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:21,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9388 states. [2022-03-03 16:59:22,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9388 to 9168. [2022-03-03 16:59:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.7845532889713103) internal successors, (25526), 9167 states have internal predecessors, (25526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25526 transitions. [2022-03-03 16:59:22,100 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25526 transitions. Word has length 101 [2022-03-03 16:59:22,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:22,100 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25526 transitions. [2022-03-03 16:59:22,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25526 transitions. [2022-03-03 16:59:22,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:22,111 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:22,111 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:22,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 16:59:22,111 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:22,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:22,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2141146676, now seen corresponding path program 11 times [2022-03-03 16:59:22,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:22,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121308351] [2022-03-03 16:59:22,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:22,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:22,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:22,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121308351] [2022-03-03 16:59:22,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121308351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:22,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:22,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:22,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403111257] [2022-03-03 16:59:22,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:22,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:22,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:22,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:22,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:22,187 INFO L87 Difference]: Start difference. First operand 9168 states and 25526 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:22,350 INFO L93 Difference]: Finished difference Result 9859 states and 27279 transitions. [2022-03-03 16:59:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 16:59:22,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:22,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:22,364 INFO L225 Difference]: With dead ends: 9859 [2022-03-03 16:59:22,364 INFO L226 Difference]: Without dead ends: 9380 [2022-03-03 16:59:22,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:22,364 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 110 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:22,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1553 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:22,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2022-03-03 16:59:22,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 9176. [2022-03-03 16:59:22,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9176 states, 9175 states have (on average 2.7840871934604903) internal successors, (25544), 9175 states have internal predecessors, (25544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9176 states to 9176 states and 25544 transitions. [2022-03-03 16:59:22,478 INFO L78 Accepts]: Start accepts. Automaton has 9176 states and 25544 transitions. Word has length 101 [2022-03-03 16:59:22,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:22,478 INFO L470 AbstractCegarLoop]: Abstraction has 9176 states and 25544 transitions. [2022-03-03 16:59:22,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9176 states and 25544 transitions. [2022-03-03 16:59:22,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:22,489 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:22,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:22,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 16:59:22,489 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash -513623558, now seen corresponding path program 12 times [2022-03-03 16:59:22,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:22,490 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861534081] [2022-03-03 16:59:22,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:22,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:22,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:22,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861534081] [2022-03-03 16:59:22,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861534081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:22,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:22,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:22,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177784043] [2022-03-03 16:59:22,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:22,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:22,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:22,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:22,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:22,578 INFO L87 Difference]: Start difference. First operand 9176 states and 25544 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:22,763 INFO L93 Difference]: Finished difference Result 9825 states and 27190 transitions. [2022-03-03 16:59:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:22,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:22,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:22,781 INFO L225 Difference]: With dead ends: 9825 [2022-03-03 16:59:22,781 INFO L226 Difference]: Without dead ends: 9345 [2022-03-03 16:59:22,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-03 16:59:22,782 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 104 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:22,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 2008 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:22,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-03-03 16:59:22,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 9172. [2022-03-03 16:59:22,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9172 states, 9171 states have (on average 2.784102060843965) internal successors, (25533), 9171 states have internal predecessors, (25533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9172 states to 9172 states and 25533 transitions. [2022-03-03 16:59:22,893 INFO L78 Accepts]: Start accepts. Automaton has 9172 states and 25533 transitions. Word has length 101 [2022-03-03 16:59:22,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:22,893 INFO L470 AbstractCegarLoop]: Abstraction has 9172 states and 25533 transitions. [2022-03-03 16:59:22,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:22,894 INFO L276 IsEmpty]: Start isEmpty. Operand 9172 states and 25533 transitions. [2022-03-03 16:59:22,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:22,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:22,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:22,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 16:59:22,904 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:22,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:22,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1634680898, now seen corresponding path program 13 times [2022-03-03 16:59:22,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:22,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728119316] [2022-03-03 16:59:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:22,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:22,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:22,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:22,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728119316] [2022-03-03 16:59:22,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728119316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:22,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:22,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:22,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437914401] [2022-03-03 16:59:22,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:22,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:22,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:22,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:22,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:22,984 INFO L87 Difference]: Start difference. First operand 9172 states and 25533 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:23,204 INFO L93 Difference]: Finished difference Result 9861 states and 27285 transitions. [2022-03-03 16:59:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 16:59:23,204 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:23,219 INFO L225 Difference]: With dead ends: 9861 [2022-03-03 16:59:23,219 INFO L226 Difference]: Without dead ends: 9341 [2022-03-03 16:59:23,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-03 16:59:23,220 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 146 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:23,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1643 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:23,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2022-03-03 16:59:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9168. [2022-03-03 16:59:23,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9168 states, 9167 states have (on average 2.784116941202138) internal successors, (25522), 9167 states have internal predecessors, (25522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9168 states to 9168 states and 25522 transitions. [2022-03-03 16:59:23,332 INFO L78 Accepts]: Start accepts. Automaton has 9168 states and 25522 transitions. Word has length 101 [2022-03-03 16:59:23,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:23,332 INFO L470 AbstractCegarLoop]: Abstraction has 9168 states and 25522 transitions. [2022-03-03 16:59:23,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 9168 states and 25522 transitions. [2022-03-03 16:59:23,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:23,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:23,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:23,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 16:59:23,344 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:23,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:23,344 INFO L85 PathProgramCache]: Analyzing trace with hash -760242484, now seen corresponding path program 14 times [2022-03-03 16:59:23,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:23,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486707047] [2022-03-03 16:59:23,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:23,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:23,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:23,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:23,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486707047] [2022-03-03 16:59:23,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486707047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:23,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:23,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:23,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338775452] [2022-03-03 16:59:23,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:23,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:23,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:23,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:23,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:23,414 INFO L87 Difference]: Start difference. First operand 9168 states and 25522 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:23,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:23,654 INFO L93 Difference]: Finished difference Result 10266 states and 28261 transitions. [2022-03-03 16:59:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 16:59:23,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:23,668 INFO L225 Difference]: With dead ends: 10266 [2022-03-03 16:59:23,668 INFO L226 Difference]: Without dead ends: 9618 [2022-03-03 16:59:23,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-03 16:59:23,668 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 260 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:23,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 1623 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:23,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9618 states. [2022-03-03 16:59:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9618 to 9036. [2022-03-03 16:59:23,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.785058107360266) internal successors, (25163), 9035 states have internal predecessors, (25163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25163 transitions. [2022-03-03 16:59:23,779 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25163 transitions. Word has length 101 [2022-03-03 16:59:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:23,779 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25163 transitions. [2022-03-03 16:59:23,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25163 transitions. [2022-03-03 16:59:23,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:23,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:23,790 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:23,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 16:59:23,790 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:23,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:23,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1002250734, now seen corresponding path program 15 times [2022-03-03 16:59:23,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:23,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366850116] [2022-03-03 16:59:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:23,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:23,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:23,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:23,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366850116] [2022-03-03 16:59:23,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366850116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:23,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:23,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:23,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677858756] [2022-03-03 16:59:23,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:23,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:23,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:23,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:23,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:23,882 INFO L87 Difference]: Start difference. First operand 9036 states and 25163 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:24,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:24,076 INFO L93 Difference]: Finished difference Result 9719 states and 26894 transitions. [2022-03-03 16:59:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:24,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:24,091 INFO L225 Difference]: With dead ends: 9719 [2022-03-03 16:59:24,091 INFO L226 Difference]: Without dead ends: 9240 [2022-03-03 16:59:24,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:24,092 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 91 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:24,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1898 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:24,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2022-03-03 16:59:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 9044. [2022-03-03 16:59:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9044 states, 9043 states have (on average 2.784584761694128) internal successors, (25181), 9043 states have internal predecessors, (25181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:24,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 25181 transitions. [2022-03-03 16:59:24,248 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 25181 transitions. Word has length 101 [2022-03-03 16:59:24,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:24,248 INFO L470 AbstractCegarLoop]: Abstraction has 9044 states and 25181 transitions. [2022-03-03 16:59:24,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 25181 transitions. [2022-03-03 16:59:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:24,261 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:24,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:24,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 16:59:24,262 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:24,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:24,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1665193444, now seen corresponding path program 16 times [2022-03-03 16:59:24,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:24,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526984102] [2022-03-03 16:59:24,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:24,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:24,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:24,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526984102] [2022-03-03 16:59:24,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526984102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:24,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:24,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:24,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633881208] [2022-03-03 16:59:24,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:24,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:24,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:24,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:24,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:24,370 INFO L87 Difference]: Start difference. First operand 9044 states and 25181 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:24,550 INFO L93 Difference]: Finished difference Result 9677 states and 26783 transitions. [2022-03-03 16:59:24,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:24,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:24,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:24,564 INFO L225 Difference]: With dead ends: 9677 [2022-03-03 16:59:24,565 INFO L226 Difference]: Without dead ends: 9197 [2022-03-03 16:59:24,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:24,565 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 87 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:24,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1522 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:24,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9197 states. [2022-03-03 16:59:24,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9197 to 9040. [2022-03-03 16:59:24,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9040 states, 9039 states have (on average 2.7846000663790242) internal successors, (25170), 9039 states have internal predecessors, (25170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9040 states to 9040 states and 25170 transitions. [2022-03-03 16:59:24,677 INFO L78 Accepts]: Start accepts. Automaton has 9040 states and 25170 transitions. Word has length 101 [2022-03-03 16:59:24,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:24,677 INFO L470 AbstractCegarLoop]: Abstraction has 9040 states and 25170 transitions. [2022-03-03 16:59:24,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 9040 states and 25170 transitions. [2022-03-03 16:59:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:24,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:24,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:24,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 16:59:24,688 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:24,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:24,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1508716512, now seen corresponding path program 17 times [2022-03-03 16:59:24,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:24,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182821879] [2022-03-03 16:59:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:24,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:24,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:24,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:24,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182821879] [2022-03-03 16:59:24,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182821879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:24,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:24,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:24,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565473912] [2022-03-03 16:59:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:24,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:24,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:24,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:24,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:24,765 INFO L87 Difference]: Start difference. First operand 9040 states and 25170 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:24,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:24,957 INFO L93 Difference]: Finished difference Result 9825 states and 27170 transitions. [2022-03-03 16:59:24,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:59:24,958 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:24,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:24,973 INFO L225 Difference]: With dead ends: 9825 [2022-03-03 16:59:24,974 INFO L226 Difference]: Without dead ends: 9305 [2022-03-03 16:59:24,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:24,974 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 141 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:24,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1332 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:24,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9305 states. [2022-03-03 16:59:25,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9305 to 9036. [2022-03-03 16:59:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9036 states, 9035 states have (on average 2.7846153846153845) internal successors, (25159), 9035 states have internal predecessors, (25159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9036 states to 9036 states and 25159 transitions. [2022-03-03 16:59:25,110 INFO L78 Accepts]: Start accepts. Automaton has 9036 states and 25159 transitions. Word has length 101 [2022-03-03 16:59:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:25,110 INFO L470 AbstractCegarLoop]: Abstraction has 9036 states and 25159 transitions. [2022-03-03 16:59:25,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 9036 states and 25159 transitions. [2022-03-03 16:59:25,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:25,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:25,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:25,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 16:59:25,122 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:25,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:25,122 INFO L85 PathProgramCache]: Analyzing trace with hash 846695578, now seen corresponding path program 18 times [2022-03-03 16:59:25,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:25,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118506794] [2022-03-03 16:59:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:25,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:25,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:25,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118506794] [2022-03-03 16:59:25,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118506794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:25,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:25,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:25,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840670055] [2022-03-03 16:59:25,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:25,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:25,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:25,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:25,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:25,207 INFO L87 Difference]: Start difference. First operand 9036 states and 25159 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:25,389 INFO L93 Difference]: Finished difference Result 9656 states and 26723 transitions. [2022-03-03 16:59:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 16:59:25,390 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:25,403 INFO L225 Difference]: With dead ends: 9656 [2022-03-03 16:59:25,403 INFO L226 Difference]: Without dead ends: 9134 [2022-03-03 16:59:25,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 16:59:25,404 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 126 mSDsluCounter, 1502 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:25,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 1697 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9134 states. [2022-03-03 16:59:25,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9134 to 8993. [2022-03-03 16:59:25,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8993 states, 8992 states have (on average 2.7850311387900355) internal successors, (25043), 8992 states have internal predecessors, (25043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8993 states to 8993 states and 25043 transitions. [2022-03-03 16:59:25,513 INFO L78 Accepts]: Start accepts. Automaton has 8993 states and 25043 transitions. Word has length 101 [2022-03-03 16:59:25,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:25,513 INFO L470 AbstractCegarLoop]: Abstraction has 8993 states and 25043 transitions. [2022-03-03 16:59:25,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 8993 states and 25043 transitions. [2022-03-03 16:59:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:25,524 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:25,524 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:25,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 16:59:25,524 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:25,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:25,525 INFO L85 PathProgramCache]: Analyzing trace with hash 540824068, now seen corresponding path program 19 times [2022-03-03 16:59:25,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:25,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726815374] [2022-03-03 16:59:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:25,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:25,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:25,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726815374] [2022-03-03 16:59:25,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726815374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:25,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:25,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:25,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738319079] [2022-03-03 16:59:25,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:25,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:25,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:25,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:25,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:25,657 INFO L87 Difference]: Start difference. First operand 8993 states and 25043 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:25,829 INFO L93 Difference]: Finished difference Result 9570 states and 26495 transitions. [2022-03-03 16:59:25,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 16:59:25,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:25,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:25,843 INFO L225 Difference]: With dead ends: 9570 [2022-03-03 16:59:25,844 INFO L226 Difference]: Without dead ends: 9091 [2022-03-03 16:59:25,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-03 16:59:25,844 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 117 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:25,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1450 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2022-03-03 16:59:25,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 8997. [2022-03-03 16:59:25,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8997 states, 8996 states have (on average 2.7845709204090707) internal successors, (25050), 8996 states have internal predecessors, (25050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8997 states to 8997 states and 25050 transitions. [2022-03-03 16:59:25,966 INFO L78 Accepts]: Start accepts. Automaton has 8997 states and 25050 transitions. Word has length 101 [2022-03-03 16:59:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:25,967 INFO L470 AbstractCegarLoop]: Abstraction has 8997 states and 25050 transitions. [2022-03-03 16:59:25,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:25,967 INFO L276 IsEmpty]: Start isEmpty. Operand 8997 states and 25050 transitions. [2022-03-03 16:59:25,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-03 16:59:25,977 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:25,977 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:25,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 16:59:25,977 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:25,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash -2126620110, now seen corresponding path program 20 times [2022-03-03 16:59:25,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:25,978 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53271044] [2022-03-03 16:59:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:25,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:26,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:26,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53271044] [2022-03-03 16:59:26,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53271044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:26,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:26,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 16:59:26,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980234833] [2022-03-03 16:59:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:26,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:59:26,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:59:26,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:59:26,050 INFO L87 Difference]: Start difference. First operand 8997 states and 25050 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:26,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:26,218 INFO L93 Difference]: Finished difference Result 9473 states and 26239 transitions. [2022-03-03 16:59:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 16:59:26,219 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-03-03 16:59:26,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:26,233 INFO L225 Difference]: With dead ends: 9473 [2022-03-03 16:59:26,233 INFO L226 Difference]: Without dead ends: 8939 [2022-03-03 16:59:26,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-03 16:59:26,233 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 83 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:26,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1756 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2022-03-03 16:59:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 8939. [2022-03-03 16:59:26,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8939 states, 8938 states have (on average 2.7879838890132023) internal successors, (24919), 8938 states have internal predecessors, (24919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8939 states to 8939 states and 24919 transitions. [2022-03-03 16:59:26,351 INFO L78 Accepts]: Start accepts. Automaton has 8939 states and 24919 transitions. Word has length 101 [2022-03-03 16:59:26,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:26,351 INFO L470 AbstractCegarLoop]: Abstraction has 8939 states and 24919 transitions. [2022-03-03 16:59:26,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:26,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8939 states and 24919 transitions. [2022-03-03 16:59:26,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:26,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:26,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:26,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 16:59:26,362 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:26,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:26,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1425192312, now seen corresponding path program 1 times [2022-03-03 16:59:26,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:26,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734991135] [2022-03-03 16:59:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:26,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:26,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:26,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734991135] [2022-03-03 16:59:26,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734991135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:26,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:26,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:26,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252300087] [2022-03-03 16:59:26,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:26,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:26,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:26,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:26,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:26,467 INFO L87 Difference]: Start difference. First operand 8939 states and 24919 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:27,032 INFO L93 Difference]: Finished difference Result 14618 states and 40107 transitions. [2022-03-03 16:59:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 16:59:27,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:27,055 INFO L225 Difference]: With dead ends: 14618 [2022-03-03 16:59:27,055 INFO L226 Difference]: Without dead ends: 13655 [2022-03-03 16:59:27,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=492, Invalid=1400, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 16:59:27,056 INFO L933 BasicCegarLoop]: 605 mSDtfsCounter, 793 mSDsluCounter, 5107 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 5629 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:27,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [793 Valid, 5629 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:27,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13655 states. [2022-03-03 16:59:27,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13655 to 9479. [2022-03-03 16:59:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 2.785503270732222) internal successors, (26401), 9478 states have internal predecessors, (26401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 26401 transitions. [2022-03-03 16:59:27,221 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 26401 transitions. Word has length 109 [2022-03-03 16:59:27,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:27,221 INFO L470 AbstractCegarLoop]: Abstraction has 9479 states and 26401 transitions. [2022-03-03 16:59:27,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,221 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 26401 transitions. [2022-03-03 16:59:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:27,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:27,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:27,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 16:59:27,233 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1923529448, now seen corresponding path program 1 times [2022-03-03 16:59:27,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:27,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16784526] [2022-03-03 16:59:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:27,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:27,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:27,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16784526] [2022-03-03 16:59:27,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16784526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:27,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:27,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:59:27,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964835883] [2022-03-03 16:59:27,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:27,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:59:27,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:59:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:27,250 INFO L87 Difference]: Start difference. First operand 9479 states and 26401 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:27,299 INFO L93 Difference]: Finished difference Result 13726 states and 37493 transitions. [2022-03-03 16:59:27,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:59:27,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:27,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:27,320 INFO L225 Difference]: With dead ends: 13726 [2022-03-03 16:59:27,321 INFO L226 Difference]: Without dead ends: 13663 [2022-03-03 16:59:27,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:27,321 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 104 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:27,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:27,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13663 states. [2022-03-03 16:59:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13663 to 9937. [2022-03-03 16:59:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9936 states have (on average 2.763184380032206) internal successors, (27455), 9936 states have internal predecessors, (27455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 27455 transitions. [2022-03-03 16:59:27,473 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 27455 transitions. Word has length 109 [2022-03-03 16:59:27,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:27,473 INFO L470 AbstractCegarLoop]: Abstraction has 9937 states and 27455 transitions. [2022-03-03 16:59:27,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 27455 transitions. [2022-03-03 16:59:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:27,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:27,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:27,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 16:59:27,486 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:27,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:27,487 INFO L85 PathProgramCache]: Analyzing trace with hash 356410200, now seen corresponding path program 1 times [2022-03-03 16:59:27,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:27,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806126548] [2022-03-03 16:59:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:27,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:27,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:27,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806126548] [2022-03-03 16:59:27,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806126548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:27,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:27,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:59:27,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47189008] [2022-03-03 16:59:27,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:27,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:59:27,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:27,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:59:27,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:27,504 INFO L87 Difference]: Start difference. First operand 9937 states and 27455 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:27,553 INFO L93 Difference]: Finished difference Result 14235 states and 38677 transitions. [2022-03-03 16:59:27,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:59:27,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:27,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:27,575 INFO L225 Difference]: With dead ends: 14235 [2022-03-03 16:59:27,575 INFO L226 Difference]: Without dead ends: 13712 [2022-03-03 16:59:27,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:27,576 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 108 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:27,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 380 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:27,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13712 states. [2022-03-03 16:59:27,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13712 to 9931. [2022-03-03 16:59:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9931 states, 9930 states have (on average 2.7618328298086605) internal successors, (27425), 9930 states have internal predecessors, (27425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9931 states to 9931 states and 27425 transitions. [2022-03-03 16:59:27,726 INFO L78 Accepts]: Start accepts. Automaton has 9931 states and 27425 transitions. Word has length 109 [2022-03-03 16:59:27,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:27,726 INFO L470 AbstractCegarLoop]: Abstraction has 9931 states and 27425 transitions. [2022-03-03 16:59:27,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,726 INFO L276 IsEmpty]: Start isEmpty. Operand 9931 states and 27425 transitions. [2022-03-03 16:59:27,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:27,738 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:27,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:27,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 16:59:27,738 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:27,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:27,739 INFO L85 PathProgramCache]: Analyzing trace with hash -958186088, now seen corresponding path program 1 times [2022-03-03 16:59:27,739 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:27,739 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932873067] [2022-03-03 16:59:27,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:27,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:27,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932873067] [2022-03-03 16:59:27,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932873067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:27,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:27,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:59:27,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510625776] [2022-03-03 16:59:27,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:27,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:59:27,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:27,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:59:27,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:27,754 INFO L87 Difference]: Start difference. First operand 9931 states and 27425 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:27,792 INFO L93 Difference]: Finished difference Result 10120 states and 27148 transitions. [2022-03-03 16:59:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:59:27,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:27,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:27,807 INFO L225 Difference]: With dead ends: 10120 [2022-03-03 16:59:27,807 INFO L226 Difference]: Without dead ends: 10120 [2022-03-03 16:59:27,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:59:27,808 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 119 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:27,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 280 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:59:27,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10120 states. [2022-03-03 16:59:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10120 to 9280. [2022-03-03 16:59:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9280 states, 9279 states have (on average 2.6963034809785538) internal successors, (25019), 9279 states have internal predecessors, (25019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9280 states to 9280 states and 25019 transitions. [2022-03-03 16:59:27,946 INFO L78 Accepts]: Start accepts. Automaton has 9280 states and 25019 transitions. Word has length 109 [2022-03-03 16:59:27,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:27,946 INFO L470 AbstractCegarLoop]: Abstraction has 9280 states and 25019 transitions. [2022-03-03 16:59:27,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:27,947 INFO L276 IsEmpty]: Start isEmpty. Operand 9280 states and 25019 transitions. [2022-03-03 16:59:27,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:27,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:27,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:27,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 16:59:27,959 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:27,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:27,960 INFO L85 PathProgramCache]: Analyzing trace with hash -2026968200, now seen corresponding path program 1 times [2022-03-03 16:59:27,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:27,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492490378] [2022-03-03 16:59:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:27,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:28,070 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:28,070 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492490378] [2022-03-03 16:59:28,070 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492490378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:28,070 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:28,070 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:28,070 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947516245] [2022-03-03 16:59:28,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:28,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:28,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:28,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:28,071 INFO L87 Difference]: Start difference. First operand 9280 states and 25019 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:28,944 INFO L93 Difference]: Finished difference Result 12057 states and 32171 transitions. [2022-03-03 16:59:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 16:59:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:28,960 INFO L225 Difference]: With dead ends: 12057 [2022-03-03 16:59:28,961 INFO L226 Difference]: Without dead ends: 11168 [2022-03-03 16:59:28,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 16:59:28,962 INFO L933 BasicCegarLoop]: 468 mSDtfsCounter, 783 mSDsluCounter, 2686 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 3069 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:28,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [783 Valid, 3069 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:28,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11168 states. [2022-03-03 16:59:29,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11168 to 9060. [2022-03-03 16:59:29,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9060 states, 9059 states have (on average 2.7005188210619275) internal successors, (24464), 9059 states have internal predecessors, (24464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9060 states to 9060 states and 24464 transitions. [2022-03-03 16:59:29,099 INFO L78 Accepts]: Start accepts. Automaton has 9060 states and 24464 transitions. Word has length 109 [2022-03-03 16:59:29,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:29,099 INFO L470 AbstractCegarLoop]: Abstraction has 9060 states and 24464 transitions. [2022-03-03 16:59:29,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 9060 states and 24464 transitions. [2022-03-03 16:59:29,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:29,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:29,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:29,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 16:59:29,113 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:29,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:29,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1022754920, now seen corresponding path program 2 times [2022-03-03 16:59:29,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:29,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732793236] [2022-03-03 16:59:29,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:29,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:29,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:29,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:29,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732793236] [2022-03-03 16:59:29,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732793236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:29,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:29,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:29,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350393795] [2022-03-03 16:59:29,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:29,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:29,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:29,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:29,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:29,222 INFO L87 Difference]: Start difference. First operand 9060 states and 24464 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:30,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:30,060 INFO L93 Difference]: Finished difference Result 11337 states and 30482 transitions. [2022-03-03 16:59:30,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 16:59:30,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:30,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:30,077 INFO L225 Difference]: With dead ends: 11337 [2022-03-03 16:59:30,077 INFO L226 Difference]: Without dead ends: 10723 [2022-03-03 16:59:30,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 16:59:30,078 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 509 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:30,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 4849 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2022-03-03 16:59:30,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 9064. [2022-03-03 16:59:30,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9064 states, 9063 states have (on average 2.7000993048659385) internal successors, (24471), 9063 states have internal predecessors, (24471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:30,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 24471 transitions. [2022-03-03 16:59:30,255 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 24471 transitions. Word has length 109 [2022-03-03 16:59:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:30,255 INFO L470 AbstractCegarLoop]: Abstraction has 9064 states and 24471 transitions. [2022-03-03 16:59:30,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 24471 transitions. [2022-03-03 16:59:30,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:30,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:30,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:30,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 16:59:30,267 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:30,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2080051074, now seen corresponding path program 3 times [2022-03-03 16:59:30,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:30,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323769414] [2022-03-03 16:59:30,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:30,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:30,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:30,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323769414] [2022-03-03 16:59:30,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323769414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:30,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:30,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:30,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382692914] [2022-03-03 16:59:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:30,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:30,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:30,374 INFO L87 Difference]: Start difference. First operand 9064 states and 24471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:31,014 INFO L93 Difference]: Finished difference Result 11173 states and 30052 transitions. [2022-03-03 16:59:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 16:59:31,014 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:31,030 INFO L225 Difference]: With dead ends: 11173 [2022-03-03 16:59:31,031 INFO L226 Difference]: Without dead ends: 10602 [2022-03-03 16:59:31,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 824 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 16:59:31,032 INFO L933 BasicCegarLoop]: 429 mSDtfsCounter, 430 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:31,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 4405 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:31,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10602 states. [2022-03-03 16:59:31,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 9068. [2022-03-03 16:59:31,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9068 states, 9067 states have (on average 2.6996801588176904) internal successors, (24478), 9067 states have internal predecessors, (24478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9068 states to 9068 states and 24478 transitions. [2022-03-03 16:59:31,170 INFO L78 Accepts]: Start accepts. Automaton has 9068 states and 24478 transitions. Word has length 109 [2022-03-03 16:59:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:31,170 INFO L470 AbstractCegarLoop]: Abstraction has 9068 states and 24478 transitions. [2022-03-03 16:59:31,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 9068 states and 24478 transitions. [2022-03-03 16:59:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:31,181 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:31,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:31,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 16:59:31,181 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:31,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:31,181 INFO L85 PathProgramCache]: Analyzing trace with hash -290488620, now seen corresponding path program 4 times [2022-03-03 16:59:31,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:31,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268169802] [2022-03-03 16:59:31,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:31,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:31,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:31,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:31,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268169802] [2022-03-03 16:59:31,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268169802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:31,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:31,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:31,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974299594] [2022-03-03 16:59:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:31,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:31,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:31,293 INFO L87 Difference]: Start difference. First operand 9068 states and 24478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:31,815 INFO L93 Difference]: Finished difference Result 11048 states and 29723 transitions. [2022-03-03 16:59:31,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 16:59:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:31,831 INFO L225 Difference]: With dead ends: 11048 [2022-03-03 16:59:31,831 INFO L226 Difference]: Without dead ends: 10520 [2022-03-03 16:59:31,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 16:59:31,832 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 367 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:31,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [367 Valid, 4306 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:31,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10520 states. [2022-03-03 16:59:31,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10520 to 9072. [2022-03-03 16:59:31,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9072 states, 9071 states have (on average 2.6992613824275162) internal successors, (24485), 9071 states have internal predecessors, (24485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9072 states to 9072 states and 24485 transitions. [2022-03-03 16:59:31,969 INFO L78 Accepts]: Start accepts. Automaton has 9072 states and 24485 transitions. Word has length 109 [2022-03-03 16:59:31,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:31,970 INFO L470 AbstractCegarLoop]: Abstraction has 9072 states and 24485 transitions. [2022-03-03 16:59:31,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:31,970 INFO L276 IsEmpty]: Start isEmpty. Operand 9072 states and 24485 transitions. [2022-03-03 16:59:31,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:31,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:31,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:31,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 16:59:31,982 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:31,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:31,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1496446334, now seen corresponding path program 5 times [2022-03-03 16:59:31,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:31,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138127533] [2022-03-03 16:59:31,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:31,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:32,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:32,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138127533] [2022-03-03 16:59:32,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138127533] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:32,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:32,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:32,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351012509] [2022-03-03 16:59:32,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:32,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:32,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:32,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:32,107 INFO L87 Difference]: Start difference. First operand 9072 states and 24485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:32,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:32,531 INFO L93 Difference]: Finished difference Result 10884 states and 29293 transitions. [2022-03-03 16:59:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:32,532 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:32,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:32,547 INFO L225 Difference]: With dead ends: 10884 [2022-03-03 16:59:32,547 INFO L226 Difference]: Without dead ends: 10399 [2022-03-03 16:59:32,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:59:32,548 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 312 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:32,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 3225 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:32,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2022-03-03 16:59:32,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 9076. [2022-03-03 16:59:32,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9076 states, 9075 states have (on average 2.6988429752066114) internal successors, (24492), 9075 states have internal predecessors, (24492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:32,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9076 states to 9076 states and 24492 transitions. [2022-03-03 16:59:32,678 INFO L78 Accepts]: Start accepts. Automaton has 9076 states and 24492 transitions. Word has length 109 [2022-03-03 16:59:32,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:32,678 INFO L470 AbstractCegarLoop]: Abstraction has 9076 states and 24492 transitions. [2022-03-03 16:59:32,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:32,678 INFO L276 IsEmpty]: Start isEmpty. Operand 9076 states and 24492 transitions. [2022-03-03 16:59:32,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:32,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:32,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:32,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 16:59:32,689 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:32,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2116900308, now seen corresponding path program 6 times [2022-03-03 16:59:32,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:32,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939548307] [2022-03-03 16:59:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:32,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:32,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:32,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939548307] [2022-03-03 16:59:32,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939548307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:32,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:32,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:32,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471927207] [2022-03-03 16:59:32,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:32,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:32,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:32,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:32,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:32,800 INFO L87 Difference]: Start difference. First operand 9076 states and 24492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:33,238 INFO L93 Difference]: Finished difference Result 10794 states and 29050 transitions. [2022-03-03 16:59:33,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 16:59:33,240 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:33,256 INFO L225 Difference]: With dead ends: 10794 [2022-03-03 16:59:33,256 INFO L226 Difference]: Without dead ends: 10270 [2022-03-03 16:59:33,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:59:33,256 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 291 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 4394 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:33,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 4394 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10270 states. [2022-03-03 16:59:33,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10270 to 9034. [2022-03-03 16:59:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9034 states, 9033 states have (on average 2.7008745710173807) internal successors, (24397), 9033 states have internal predecessors, (24397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:33,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9034 states to 9034 states and 24397 transitions. [2022-03-03 16:59:33,383 INFO L78 Accepts]: Start accepts. Automaton has 9034 states and 24397 transitions. Word has length 109 [2022-03-03 16:59:33,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:33,384 INFO L470 AbstractCegarLoop]: Abstraction has 9034 states and 24397 transitions. [2022-03-03 16:59:33,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:33,384 INFO L276 IsEmpty]: Start isEmpty. Operand 9034 states and 24397 transitions. [2022-03-03 16:59:33,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:33,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:33,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:33,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 16:59:33,395 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:33,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1522439320, now seen corresponding path program 7 times [2022-03-03 16:59:33,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:33,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403941641] [2022-03-03 16:59:33,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:33,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:33,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:33,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:33,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403941641] [2022-03-03 16:59:33,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403941641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:33,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:33,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:33,517 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376506390] [2022-03-03 16:59:33,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:33,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:33,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:33,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:33,518 INFO L87 Difference]: Start difference. First operand 9034 states and 24397 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:33,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:33,965 INFO L93 Difference]: Finished difference Result 11006 states and 29645 transitions. [2022-03-03 16:59:33,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 16:59:33,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:33,981 INFO L225 Difference]: With dead ends: 11006 [2022-03-03 16:59:33,982 INFO L226 Difference]: Without dead ends: 10521 [2022-03-03 16:59:33,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 16:59:33,982 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 278 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:33,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 3103 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:33,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-03-03 16:59:34,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-03-03 16:59:34,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.7005412570418645) internal successors, (24448), 9053 states have internal predecessors, (24448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:34,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24448 transitions. [2022-03-03 16:59:34,120 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24448 transitions. Word has length 109 [2022-03-03 16:59:34,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:34,120 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24448 transitions. [2022-03-03 16:59:34,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:34,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24448 transitions. [2022-03-03 16:59:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:34,132 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:34,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:34,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 16:59:34,132 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:34,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:34,133 INFO L85 PathProgramCache]: Analyzing trace with hash -840818666, now seen corresponding path program 8 times [2022-03-03 16:59:34,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:34,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447361195] [2022-03-03 16:59:34,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:34,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:34,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:34,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447361195] [2022-03-03 16:59:34,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447361195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:34,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:34,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:34,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710022969] [2022-03-03 16:59:34,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:34,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:34,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:34,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:34,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:34,243 INFO L87 Difference]: Start difference. First operand 9054 states and 24448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:34,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:34,710 INFO L93 Difference]: Finished difference Result 10964 states and 29534 transitions. [2022-03-03 16:59:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:34,711 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:34,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:34,728 INFO L225 Difference]: With dead ends: 10964 [2022-03-03 16:59:34,729 INFO L226 Difference]: Without dead ends: 10478 [2022-03-03 16:59:34,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 16:59:34,729 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 264 mSDsluCounter, 2785 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:34,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 3112 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-03-03 16:59:34,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 9050. [2022-03-03 16:59:34,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.700519394408222) internal successors, (24437), 9049 states have internal predecessors, (24437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:34,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24437 transitions. [2022-03-03 16:59:34,882 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24437 transitions. Word has length 109 [2022-03-03 16:59:34,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:34,882 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24437 transitions. [2022-03-03 16:59:34,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24437 transitions. [2022-03-03 16:59:34,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:34,894 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:34,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:34,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 16:59:34,895 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:34,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:34,895 INFO L85 PathProgramCache]: Analyzing trace with hash -140131110, now seen corresponding path program 9 times [2022-03-03 16:59:34,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:34,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896215694] [2022-03-03 16:59:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:34,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:35,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:35,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896215694] [2022-03-03 16:59:35,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896215694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:35,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:35,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:35,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763691496] [2022-03-03 16:59:35,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:35,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:35,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:35,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:35,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:35,019 INFO L87 Difference]: Start difference. First operand 9050 states and 24437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:35,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:35,593 INFO L93 Difference]: Finished difference Result 11032 states and 29701 transitions. [2022-03-03 16:59:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 16:59:35,594 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:35,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:35,612 INFO L225 Difference]: With dead ends: 11032 [2022-03-03 16:59:35,612 INFO L226 Difference]: Without dead ends: 10506 [2022-03-03 16:59:35,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 16:59:35,613 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 331 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:35,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2461 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:35,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-03-03 16:59:35,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 9046. [2022-03-03 16:59:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.7004975124378108) internal successors, (24426), 9045 states have internal predecessors, (24426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:35,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24426 transitions. [2022-03-03 16:59:35,767 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24426 transitions. Word has length 109 [2022-03-03 16:59:35,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:35,767 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24426 transitions. [2022-03-03 16:59:35,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:35,767 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24426 transitions. [2022-03-03 16:59:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:35,779 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:35,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:35,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 16:59:35,780 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:35,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:35,780 INFO L85 PathProgramCache]: Analyzing trace with hash 937556918, now seen corresponding path program 10 times [2022-03-03 16:59:35,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:35,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108643790] [2022-03-03 16:59:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:35,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:35,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:35,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:35,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108643790] [2022-03-03 16:59:35,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108643790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:35,892 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:35,892 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:35,892 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429913342] [2022-03-03 16:59:35,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:35,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:35,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:35,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:35,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:35,893 INFO L87 Difference]: Start difference. First operand 9046 states and 24426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:36,502 INFO L93 Difference]: Finished difference Result 11162 states and 30045 transitions. [2022-03-03 16:59:36,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 16:59:36,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:36,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:36,520 INFO L225 Difference]: With dead ends: 11162 [2022-03-03 16:59:36,521 INFO L226 Difference]: Without dead ends: 10634 [2022-03-03 16:59:36,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 16:59:36,521 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 345 mSDsluCounter, 3740 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 4055 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:36,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 4055 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:36,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10634 states. [2022-03-03 16:59:36,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10634 to 9050. [2022-03-03 16:59:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.7000773566139906) internal successors, (24433), 9049 states have internal predecessors, (24433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24433 transitions. [2022-03-03 16:59:36,676 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24433 transitions. Word has length 109 [2022-03-03 16:59:36,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:36,676 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24433 transitions. [2022-03-03 16:59:36,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:36,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24433 transitions. [2022-03-03 16:59:36,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:36,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:36,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:36,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 16:59:36,689 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:36,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:36,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1570475424, now seen corresponding path program 11 times [2022-03-03 16:59:36,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:36,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205752114] [2022-03-03 16:59:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:36,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:36,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:36,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205752114] [2022-03-03 16:59:36,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205752114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:36,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:36,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:36,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821960377] [2022-03-03 16:59:36,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:36,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:36,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:36,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:36,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:36,833 INFO L87 Difference]: Start difference. First operand 9050 states and 24433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:37,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:37,337 INFO L93 Difference]: Finished difference Result 10998 states and 29615 transitions. [2022-03-03 16:59:37,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:37,338 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:37,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:37,368 INFO L225 Difference]: With dead ends: 10998 [2022-03-03 16:59:37,369 INFO L226 Difference]: Without dead ends: 10513 [2022-03-03 16:59:37,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:59:37,369 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 282 mSDsluCounter, 3576 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:37,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3896 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:37,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-03-03 16:59:37,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 9054. [2022-03-03 16:59:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.699657572075555) internal successors, (24440), 9053 states have internal predecessors, (24440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24440 transitions. [2022-03-03 16:59:37,539 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24440 transitions. Word has length 109 [2022-03-03 16:59:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:37,539 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24440 transitions. [2022-03-03 16:59:37,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24440 transitions. [2022-03-03 16:59:37,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:37,552 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:37,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:37,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 16:59:37,552 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:37,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:37,553 INFO L85 PathProgramCache]: Analyzing trace with hash -888854770, now seen corresponding path program 12 times [2022-03-03 16:59:37,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:37,553 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239281365] [2022-03-03 16:59:37,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:37,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:37,668 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:37,668 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239281365] [2022-03-03 16:59:37,668 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239281365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:37,668 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:37,668 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:37,668 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845596510] [2022-03-03 16:59:37,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:37,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:37,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:37,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:37,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:37,669 INFO L87 Difference]: Start difference. First operand 9054 states and 24440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:38,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:38,163 INFO L93 Difference]: Finished difference Result 10932 states and 29438 transitions. [2022-03-03 16:59:38,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 16:59:38,163 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:38,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:38,186 INFO L225 Difference]: With dead ends: 10932 [2022-03-03 16:59:38,186 INFO L226 Difference]: Without dead ends: 10438 [2022-03-03 16:59:38,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 16:59:38,187 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 269 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:38,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3621 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:38,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10438 states. [2022-03-03 16:59:38,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10438 to 9042. [2022-03-03 16:59:38,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700475611104966) internal successors, (24415), 9041 states have internal predecessors, (24415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:38,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24415 transitions. [2022-03-03 16:59:38,350 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24415 transitions. Word has length 109 [2022-03-03 16:59:38,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:38,350 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24415 transitions. [2022-03-03 16:59:38,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:38,350 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24415 transitions. [2022-03-03 16:59:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:38,362 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:38,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:38,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 16:59:38,363 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:38,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:38,363 INFO L85 PathProgramCache]: Analyzing trace with hash -565920918, now seen corresponding path program 13 times [2022-03-03 16:59:38,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:38,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797697461] [2022-03-03 16:59:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:38,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:38,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:38,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:38,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797697461] [2022-03-03 16:59:38,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797697461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:38,473 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:38,473 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:38,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116017793] [2022-03-03 16:59:38,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:38,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:38,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:38,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:38,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:38,474 INFO L87 Difference]: Start difference. First operand 9042 states and 24415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:39,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:39,133 INFO L93 Difference]: Finished difference Result 11295 states and 30392 transitions. [2022-03-03 16:59:39,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 16:59:39,133 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:39,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:39,155 INFO L225 Difference]: With dead ends: 11295 [2022-03-03 16:59:39,155 INFO L226 Difference]: Without dead ends: 10724 [2022-03-03 16:59:39,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 16:59:39,156 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 408 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 4141 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:39,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 4141 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:39,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10724 states. [2022-03-03 16:59:39,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10724 to 9046. [2022-03-03 16:59:39,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.700055279159757) internal successors, (24422), 9045 states have internal predecessors, (24422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24422 transitions. [2022-03-03 16:59:39,310 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24422 transitions. Word has length 109 [2022-03-03 16:59:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:39,310 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24422 transitions. [2022-03-03 16:59:39,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24422 transitions. [2022-03-03 16:59:39,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:39,322 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:39,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:39,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 16:59:39,323 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:39,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:39,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1223641536, now seen corresponding path program 14 times [2022-03-03 16:59:39,323 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:39,323 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368693998] [2022-03-03 16:59:39,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:39,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:39,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:39,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368693998] [2022-03-03 16:59:39,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368693998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:39,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:39,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:39,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557220614] [2022-03-03 16:59:39,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:39,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:39,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:39,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:39,433 INFO L87 Difference]: Start difference. First operand 9046 states and 24422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:40,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:40,008 INFO L93 Difference]: Finished difference Result 11170 states and 30063 transitions. [2022-03-03 16:59:40,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 16:59:40,009 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:40,033 INFO L225 Difference]: With dead ends: 11170 [2022-03-03 16:59:40,033 INFO L226 Difference]: Without dead ends: 10642 [2022-03-03 16:59:40,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 16:59:40,034 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 343 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 4061 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:40,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 4061 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:40,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-03-03 16:59:40,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 9050. [2022-03-03 16:59:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6996353188197593) internal successors, (24429), 9049 states have internal predecessors, (24429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24429 transitions. [2022-03-03 16:59:40,195 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24429 transitions. Word has length 109 [2022-03-03 16:59:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:40,195 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24429 transitions. [2022-03-03 16:59:40,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:40,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24429 transitions. [2022-03-03 16:59:40,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:40,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:40,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:40,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 16:59:40,209 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:40,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:40,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1284390806, now seen corresponding path program 15 times [2022-03-03 16:59:40,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:40,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81872247] [2022-03-03 16:59:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:40,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:40,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:40,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81872247] [2022-03-03 16:59:40,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81872247] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:40,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:40,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:40,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820081043] [2022-03-03 16:59:40,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:40,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:40,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:40,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:40,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:40,339 INFO L87 Difference]: Start difference. First operand 9050 states and 24429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:40,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:40,797 INFO L93 Difference]: Finished difference Result 11006 states and 29633 transitions. [2022-03-03 16:59:40,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:40,797 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:40,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:40,818 INFO L225 Difference]: With dead ends: 11006 [2022-03-03 16:59:40,818 INFO L226 Difference]: Without dead ends: 10521 [2022-03-03 16:59:40,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:59:40,819 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 280 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:40,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3676 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2022-03-03 16:59:40,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 9054. [2022-03-03 16:59:40,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6992157295924004) internal successors, (24436), 9053 states have internal predecessors, (24436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24436 transitions. [2022-03-03 16:59:40,976 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24436 transitions. Word has length 109 [2022-03-03 16:59:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:40,976 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24436 transitions. [2022-03-03 16:59:40,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:40,976 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24436 transitions. [2022-03-03 16:59:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:40,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:40,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:40,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 16:59:40,989 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:40,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:40,989 INFO L85 PathProgramCache]: Analyzing trace with hash -602770152, now seen corresponding path program 16 times [2022-03-03 16:59:40,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:40,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440696584] [2022-03-03 16:59:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:40,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:41,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:41,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440696584] [2022-03-03 16:59:41,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440696584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:41,108 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:41,108 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:41,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465206876] [2022-03-03 16:59:41,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:41,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:41,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:41,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:41,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:41,109 INFO L87 Difference]: Start difference. First operand 9054 states and 24436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:41,560 INFO L93 Difference]: Finished difference Result 10932 states and 29434 transitions. [2022-03-03 16:59:41,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 16:59:41,560 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:41,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:41,576 INFO L225 Difference]: With dead ends: 10932 [2022-03-03 16:59:41,576 INFO L226 Difference]: Without dead ends: 10434 [2022-03-03 16:59:41,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:59:41,577 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 267 mSDsluCounter, 3822 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 4132 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:41,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 4132 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:41,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2022-03-03 16:59:41,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 9038. [2022-03-03 16:59:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9038 states, 9037 states have (on average 2.700453690383977) internal successors, (24404), 9037 states have internal predecessors, (24404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 24404 transitions. [2022-03-03 16:59:41,707 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 24404 transitions. Word has length 109 [2022-03-03 16:59:41,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:41,707 INFO L470 AbstractCegarLoop]: Abstraction has 9038 states and 24404 transitions. [2022-03-03 16:59:41,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 24404 transitions. [2022-03-03 16:59:41,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:41,719 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:41,719 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:41,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 16:59:41,719 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:41,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:41,720 INFO L85 PathProgramCache]: Analyzing trace with hash 71721492, now seen corresponding path program 17 times [2022-03-03 16:59:41,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:41,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404849412] [2022-03-03 16:59:41,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:41,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:41,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:41,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404849412] [2022-03-03 16:59:41,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404849412] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:41,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:41,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:41,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907202901] [2022-03-03 16:59:41,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:41,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:41,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:41,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:41,830 INFO L87 Difference]: Start difference. First operand 9038 states and 24404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:42,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:42,617 INFO L93 Difference]: Finished difference Result 11315 states and 30422 transitions. [2022-03-03 16:59:42,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 16:59:42,617 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:42,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:42,631 INFO L225 Difference]: With dead ends: 11315 [2022-03-03 16:59:42,631 INFO L226 Difference]: Without dead ends: 10701 [2022-03-03 16:59:42,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 16:59:42,632 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 489 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:42,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 4507 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-03-03 16:59:42,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9042. [2022-03-03 16:59:42,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9042 states, 9041 states have (on average 2.700033182170114) internal successors, (24411), 9041 states have internal predecessors, (24411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:42,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9042 states to 9042 states and 24411 transitions. [2022-03-03 16:59:42,749 INFO L78 Accepts]: Start accepts. Automaton has 9042 states and 24411 transitions. Word has length 109 [2022-03-03 16:59:42,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:42,749 INFO L470 AbstractCegarLoop]: Abstraction has 9042 states and 24411 transitions. [2022-03-03 16:59:42,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:42,749 INFO L276 IsEmpty]: Start isEmpty. Operand 9042 states and 24411 transitions. [2022-03-03 16:59:42,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:42,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:42,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:42,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 16:59:42,761 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:42,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:42,761 INFO L85 PathProgramCache]: Analyzing trace with hash -985574662, now seen corresponding path program 18 times [2022-03-03 16:59:42,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:42,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327545938] [2022-03-03 16:59:42,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:42,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:42,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:42,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:42,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:42,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327545938] [2022-03-03 16:59:42,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327545938] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:42,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:42,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:42,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466717453] [2022-03-03 16:59:42,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:42,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:42,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:42,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:42,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:42,864 INFO L87 Difference]: Start difference. First operand 9042 states and 24411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:43,546 INFO L93 Difference]: Finished difference Result 11167 states and 30036 transitions. [2022-03-03 16:59:43,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 16:59:43,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:43,562 INFO L225 Difference]: With dead ends: 11167 [2022-03-03 16:59:43,562 INFO L226 Difference]: Without dead ends: 10596 [2022-03-03 16:59:43,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 16:59:43,563 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 413 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 4406 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:43,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 4406 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:43,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10596 states. [2022-03-03 16:59:43,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10596 to 9046. [2022-03-03 16:59:43,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9046 states, 9045 states have (on average 2.6996130458817027) internal successors, (24418), 9045 states have internal predecessors, (24418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:43,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9046 states to 9046 states and 24418 transitions. [2022-03-03 16:59:43,688 INFO L78 Accepts]: Start accepts. Automaton has 9046 states and 24418 transitions. Word has length 109 [2022-03-03 16:59:43,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:43,688 INFO L470 AbstractCegarLoop]: Abstraction has 9046 states and 24418 transitions. [2022-03-03 16:59:43,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:43,689 INFO L276 IsEmpty]: Start isEmpty. Operand 9046 states and 24418 transitions. [2022-03-03 16:59:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:43,700 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:43,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:43,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 16:59:43,701 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:43,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:43,701 INFO L85 PathProgramCache]: Analyzing trace with hash 803987792, now seen corresponding path program 19 times [2022-03-03 16:59:43,701 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:43,701 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373406968] [2022-03-03 16:59:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:43,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:43,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:43,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:43,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373406968] [2022-03-03 16:59:43,808 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373406968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:43,808 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:43,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:43,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310206833] [2022-03-03 16:59:43,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:43,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:43,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:43,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:43,809 INFO L87 Difference]: Start difference. First operand 9046 states and 24418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:44,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:44,415 INFO L93 Difference]: Finished difference Result 11050 states and 29729 transitions. [2022-03-03 16:59:44,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 16:59:44,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:44,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:44,433 INFO L225 Difference]: With dead ends: 11050 [2022-03-03 16:59:44,433 INFO L226 Difference]: Without dead ends: 10522 [2022-03-03 16:59:44,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 16:59:44,434 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 350 mSDsluCounter, 3988 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:44,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 4292 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-03-03 16:59:44,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 9050. [2022-03-03 16:59:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9050 states, 9049 states have (on average 2.6991932810255275) internal successors, (24425), 9049 states have internal predecessors, (24425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:44,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9050 states to 9050 states and 24425 transitions. [2022-03-03 16:59:44,575 INFO L78 Accepts]: Start accepts. Automaton has 9050 states and 24425 transitions. Word has length 109 [2022-03-03 16:59:44,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:44,575 INFO L470 AbstractCegarLoop]: Abstraction has 9050 states and 24425 transitions. [2022-03-03 16:59:44,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9050 states and 24425 transitions. [2022-03-03 16:59:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:44,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:44,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:44,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 16:59:44,587 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:44,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:44,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1704044550, now seen corresponding path program 20 times [2022-03-03 16:59:44,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:44,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219253837] [2022-03-03 16:59:44,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:44,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:44,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:44,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219253837] [2022-03-03 16:59:44,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219253837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:44,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:44,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:44,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936159566] [2022-03-03 16:59:44,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:44,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:44,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:44,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:44,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:44,696 INFO L87 Difference]: Start difference. First operand 9050 states and 24425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:45,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:45,175 INFO L93 Difference]: Finished difference Result 10902 states and 29343 transitions. [2022-03-03 16:59:45,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:45,175 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:45,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:45,191 INFO L225 Difference]: With dead ends: 10902 [2022-03-03 16:59:45,191 INFO L226 Difference]: Without dead ends: 10417 [2022-03-03 16:59:45,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:59:45,192 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 290 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:45,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3569 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10417 states. [2022-03-03 16:59:45,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10417 to 9054. [2022-03-03 16:59:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 2.6987738871092457) internal successors, (24432), 9053 states have internal predecessors, (24432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:45,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 24432 transitions. [2022-03-03 16:59:45,319 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 24432 transitions. Word has length 109 [2022-03-03 16:59:45,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:45,320 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 24432 transitions. [2022-03-03 16:59:45,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:45,320 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 24432 transitions. [2022-03-03 16:59:45,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:45,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:45,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:45,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 16:59:45,330 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:45,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1022423896, now seen corresponding path program 21 times [2022-03-03 16:59:45,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:45,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575362308] [2022-03-03 16:59:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:45,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:45,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:45,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575362308] [2022-03-03 16:59:45,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575362308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:45,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:45,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:45,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881967050] [2022-03-03 16:59:45,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:45,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:45,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:45,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:45,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:45,433 INFO L87 Difference]: Start difference. First operand 9054 states and 24432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:45,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:45,856 INFO L93 Difference]: Finished difference Result 10772 states and 28990 transitions. [2022-03-03 16:59:45,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 16:59:45,857 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:45,873 INFO L225 Difference]: With dead ends: 10772 [2022-03-03 16:59:45,873 INFO L226 Difference]: Without dead ends: 10244 [2022-03-03 16:59:45,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 16:59:45,876 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 267 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:45,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3811 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:45,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2022-03-03 16:59:45,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 9008. [2022-03-03 16:59:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9008 states, 9007 states have (on average 2.701232374819585) internal successors, (24330), 9007 states have internal predecessors, (24330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:45,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9008 states to 9008 states and 24330 transitions. [2022-03-03 16:59:45,996 INFO L78 Accepts]: Start accepts. Automaton has 9008 states and 24330 transitions. Word has length 109 [2022-03-03 16:59:45,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:45,996 INFO L470 AbstractCegarLoop]: Abstraction has 9008 states and 24330 transitions. [2022-03-03 16:59:45,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 9008 states and 24330 transitions. [2022-03-03 16:59:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:46,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:46,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:46,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 16:59:46,007 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:46,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1360774976, now seen corresponding path program 22 times [2022-03-03 16:59:46,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:46,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814528505] [2022-03-03 16:59:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:46,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:46,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:46,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814528505] [2022-03-03 16:59:46,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814528505] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:46,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:46,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:46,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863050143] [2022-03-03 16:59:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:46,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:46,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:46,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:46,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:46,135 INFO L87 Difference]: Start difference. First operand 9008 states and 24330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:46,678 INFO L93 Difference]: Finished difference Result 11068 states and 29820 transitions. [2022-03-03 16:59:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 16:59:46,679 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:46,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:46,699 INFO L225 Difference]: With dead ends: 11068 [2022-03-03 16:59:46,699 INFO L226 Difference]: Without dead ends: 10583 [2022-03-03 16:59:46,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 16:59:46,701 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 233 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:46,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3531 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:46,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10583 states. [2022-03-03 16:59:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10583 to 9032. [2022-03-03 16:59:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7009190565828813) internal successors, (24392), 9031 states have internal predecessors, (24392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24392 transitions. [2022-03-03 16:59:46,890 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24392 transitions. Word has length 109 [2022-03-03 16:59:46,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:46,890 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24392 transitions. [2022-03-03 16:59:46,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:46,890 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24392 transitions. [2022-03-03 16:59:46,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:46,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:46,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:46,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 16:59:46,907 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:46,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2042395630, now seen corresponding path program 23 times [2022-03-03 16:59:46,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:46,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032641863] [2022-03-03 16:59:46,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:46,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:47,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:47,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032641863] [2022-03-03 16:59:47,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032641863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:47,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:47,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:47,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190610418] [2022-03-03 16:59:47,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:47,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:47,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:47,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:47,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:47,046 INFO L87 Difference]: Start difference. First operand 9032 states and 24392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:47,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:47,498 INFO L93 Difference]: Finished difference Result 11034 states and 29731 transitions. [2022-03-03 16:59:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:47,515 INFO L225 Difference]: With dead ends: 11034 [2022-03-03 16:59:47,515 INFO L226 Difference]: Without dead ends: 10548 [2022-03-03 16:59:47,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 16:59:47,516 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 230 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:47,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 3164 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:47,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-03-03 16:59:47,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 9028. [2022-03-03 16:59:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7008973080757728) internal successors, (24381), 9027 states have internal predecessors, (24381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24381 transitions. [2022-03-03 16:59:47,666 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24381 transitions. Word has length 109 [2022-03-03 16:59:47,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:47,666 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24381 transitions. [2022-03-03 16:59:47,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:47,666 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24381 transitions. [2022-03-03 16:59:47,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:47,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:47,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:47,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 16:59:47,678 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:47,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:47,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1551884110, now seen corresponding path program 24 times [2022-03-03 16:59:47,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:47,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215064160] [2022-03-03 16:59:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:47,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:47,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215064160] [2022-03-03 16:59:47,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215064160] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:47,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:47,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:47,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622674636] [2022-03-03 16:59:47,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:47,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:47,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:47,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:47,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:47,787 INFO L87 Difference]: Start difference. First operand 9028 states and 24381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:48,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:48,476 INFO L93 Difference]: Finished difference Result 11070 states and 29826 transitions. [2022-03-03 16:59:48,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 16:59:48,476 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:48,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:48,490 INFO L225 Difference]: With dead ends: 11070 [2022-03-03 16:59:48,490 INFO L226 Difference]: Without dead ends: 10544 [2022-03-03 16:59:48,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 16:59:48,491 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 280 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:48,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3671 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10544 states. [2022-03-03 16:59:48,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10544 to 9024. [2022-03-03 16:59:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700875540285936) internal successors, (24370), 9023 states have internal predecessors, (24370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24370 transitions. [2022-03-03 16:59:48,611 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24370 transitions. Word has length 109 [2022-03-03 16:59:48,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:48,611 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24370 transitions. [2022-03-03 16:59:48,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:48,611 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24370 transitions. [2022-03-03 16:59:48,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:48,622 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:48,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:48,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 16:59:48,622 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:48,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:48,622 INFO L85 PathProgramCache]: Analyzing trace with hash 599006722, now seen corresponding path program 25 times [2022-03-03 16:59:48,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:48,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96980170] [2022-03-03 16:59:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:48,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:48,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:48,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96980170] [2022-03-03 16:59:48,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96980170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:48,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:48,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:48,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66677881] [2022-03-03 16:59:48,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:48,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:48,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:48,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:48,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:48,726 INFO L87 Difference]: Start difference. First operand 9024 states and 24370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:49,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:49,337 INFO L93 Difference]: Finished difference Result 11158 states and 30040 transitions. [2022-03-03 16:59:49,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 16:59:49,337 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:49,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:49,354 INFO L225 Difference]: With dead ends: 11158 [2022-03-03 16:59:49,354 INFO L226 Difference]: Without dead ends: 10592 [2022-03-03 16:59:49,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 16:59:49,355 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 348 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:49,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3447 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:49,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2022-03-03 16:59:49,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 9020. [2022-03-03 16:59:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.700853753187715) internal successors, (24359), 9019 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:49,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24359 transitions. [2022-03-03 16:59:49,501 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24359 transitions. Word has length 109 [2022-03-03 16:59:49,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:49,501 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24359 transitions. [2022-03-03 16:59:49,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24359 transitions. [2022-03-03 16:59:49,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:49,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:49,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:49,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 16:59:49,514 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:49,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:49,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1903548090, now seen corresponding path program 26 times [2022-03-03 16:59:49,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:49,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033790139] [2022-03-03 16:59:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:49,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:49,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:49,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:49,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033790139] [2022-03-03 16:59:49,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033790139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:49,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:49,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:49,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428481950] [2022-03-03 16:59:49,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:49,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:49,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:49,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:49,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:49,624 INFO L87 Difference]: Start difference. First operand 9020 states and 24359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:50,068 INFO L93 Difference]: Finished difference Result 11132 states and 29992 transitions. [2022-03-03 16:59:50,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 16:59:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:50,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:50,086 INFO L225 Difference]: With dead ends: 11132 [2022-03-03 16:59:50,086 INFO L226 Difference]: Without dead ends: 10647 [2022-03-03 16:59:50,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 16:59:50,087 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 251 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:50,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3266 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:50,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10647 states. [2022-03-03 16:59:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10647 to 9032. [2022-03-03 16:59:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-03-03 16:59:50,234 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-03-03 16:59:50,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:50,234 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-03-03 16:59:50,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-03-03 16:59:50,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:50,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:50,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:50,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 16:59:50,247 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:50,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:50,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1221927436, now seen corresponding path program 27 times [2022-03-03 16:59:50,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:50,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635091697] [2022-03-03 16:59:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:50,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:50,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:50,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635091697] [2022-03-03 16:59:50,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635091697] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:50,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:50,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:50,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114383760] [2022-03-03 16:59:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:50,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:50,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:50,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:50,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:50,364 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:50,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:50,870 INFO L93 Difference]: Finished difference Result 11090 states and 29881 transitions. [2022-03-03 16:59:50,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:50,871 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:50,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:50,887 INFO L225 Difference]: With dead ends: 11090 [2022-03-03 16:59:50,887 INFO L226 Difference]: Without dead ends: 10604 [2022-03-03 16:59:50,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=373, Invalid=1187, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 16:59:50,888 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 238 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:50,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 3621 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:50,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10604 states. [2022-03-03 16:59:51,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10604 to 9028. [2022-03-03 16:59:51,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-03-03 16:59:51,032 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-03-03 16:59:51,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:51,033 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-03-03 16:59:51,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-03-03 16:59:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:51,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:51,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:51,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 16:59:51,045 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:51,045 INFO L85 PathProgramCache]: Analyzing trace with hash -521239880, now seen corresponding path program 28 times [2022-03-03 16:59:51,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:51,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663964321] [2022-03-03 16:59:51,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:51,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:51,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:51,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663964321] [2022-03-03 16:59:51,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663964321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:51,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:51,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:51,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500443577] [2022-03-03 16:59:51,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:51,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:51,153 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:51,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:51,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:51,154 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:51,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:51,727 INFO L93 Difference]: Finished difference Result 11218 states and 30213 transitions. [2022-03-03 16:59:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 16:59:51,727 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:51,745 INFO L225 Difference]: With dead ends: 11218 [2022-03-03 16:59:51,745 INFO L226 Difference]: Without dead ends: 10692 [2022-03-03 16:59:51,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 16:59:51,746 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 311 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:51,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 2632 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-03-03 16:59:51,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9024. [2022-03-03 16:59:51,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-03-03 16:59:51,901 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-03-03 16:59:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:51,901 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-03-03 16:59:51,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:51,901 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-03-03 16:59:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:51,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:51,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:51,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 16:59:51,916 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:51,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash 556448148, now seen corresponding path program 29 times [2022-03-03 16:59:51,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:51,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543284022] [2022-03-03 16:59:51,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:51,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:52,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:52,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543284022] [2022-03-03 16:59:52,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543284022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:52,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:52,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:52,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446928226] [2022-03-03 16:59:52,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:52,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:52,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:52,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:52,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:52,036 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:52,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:52,574 INFO L93 Difference]: Finished difference Result 11220 states and 30205 transitions. [2022-03-03 16:59:52,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 16:59:52,575 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:52,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:52,593 INFO L225 Difference]: With dead ends: 11220 [2022-03-03 16:59:52,593 INFO L226 Difference]: Without dead ends: 10692 [2022-03-03 16:59:52,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 16:59:52,594 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 302 mSDsluCounter, 3693 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:52,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3973 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:52,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10692 states. [2022-03-03 16:59:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10692 to 9028. [2022-03-03 16:59:52,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-03-03 16:59:52,733 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-03-03 16:59:52,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:52,733 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-03-03 16:59:52,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:52,733 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-03-03 16:59:52,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:52,744 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:52,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:52,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 16:59:52,744 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:52,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:52,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1951584194, now seen corresponding path program 30 times [2022-03-03 16:59:52,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:52,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587538599] [2022-03-03 16:59:52,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:52,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:52,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:52,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:52,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587538599] [2022-03-03 16:59:52,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587538599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:52,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:52,861 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:52,861 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998786565] [2022-03-03 16:59:52,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:52,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:52,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:52,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:52,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:52,862 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:53,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:53,390 INFO L93 Difference]: Finished difference Result 11072 states and 29819 transitions. [2022-03-03 16:59:53,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:53,390 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:53,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:53,407 INFO L225 Difference]: With dead ends: 11072 [2022-03-03 16:59:53,407 INFO L226 Difference]: Without dead ends: 10587 [2022-03-03 16:59:53,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 16:59:53,408 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 241 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 3874 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:53,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 3874 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10587 states. [2022-03-03 16:59:53,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10587 to 9032. [2022-03-03 16:59:53,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:53,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-03-03 16:59:53,552 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-03-03 16:59:53,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:53,552 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-03-03 16:59:53,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-03-03 16:59:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:53,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:53,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:53,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 16:59:53,565 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1269963540, now seen corresponding path program 31 times [2022-03-03 16:59:53,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:53,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333521057] [2022-03-03 16:59:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:53,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:53,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:53,678 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333521057] [2022-03-03 16:59:53,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333521057] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:53,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:53,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:53,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906850804] [2022-03-03 16:59:53,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:53,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:53,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:53,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:53,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:53,679 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:54,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:54,186 INFO L93 Difference]: Finished difference Result 10990 states and 29598 transitions. [2022-03-03 16:59:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 16:59:54,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:54,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:54,204 INFO L225 Difference]: With dead ends: 10990 [2022-03-03 16:59:54,204 INFO L226 Difference]: Without dead ends: 10492 [2022-03-03 16:59:54,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 16:59:54,205 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 223 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:54,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 3810 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:54,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10492 states. [2022-03-03 16:59:54,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10492 to 9016. [2022-03-03 16:59:54,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.700831946755408) internal successors, (24348), 9015 states have internal predecessors, (24348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24348 transitions. [2022-03-03 16:59:54,366 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24348 transitions. Word has length 109 [2022-03-03 16:59:54,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:54,366 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24348 transitions. [2022-03-03 16:59:54,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:54,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24348 transitions. [2022-03-03 16:59:54,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:54,378 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:54,378 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:54,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 16:59:54,379 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:54,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:54,379 INFO L85 PathProgramCache]: Analyzing trace with hash -821603778, now seen corresponding path program 32 times [2022-03-03 16:59:54,379 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:54,379 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291657978] [2022-03-03 16:59:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:54,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:54,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:54,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291657978] [2022-03-03 16:59:54,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291657978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:54,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:54,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:54,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028165582] [2022-03-03 16:59:54,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:54,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:54,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:54,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:54,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:54,491 INFO L87 Difference]: Start difference. First operand 9016 states and 24348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:54,943 INFO L93 Difference]: Finished difference Result 11168 states and 30091 transitions. [2022-03-03 16:59:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 16:59:54,943 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:54,961 INFO L225 Difference]: With dead ends: 11168 [2022-03-03 16:59:54,961 INFO L226 Difference]: Without dead ends: 10683 [2022-03-03 16:59:54,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 16:59:54,961 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 251 mSDsluCounter, 3348 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:54,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 3632 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:54,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-03-03 16:59:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-03-03 16:59:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-03-03 16:59:55,124 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-03-03 16:59:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:55,125 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-03-03 16:59:55,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-03-03 16:59:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:55,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:55,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:55,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 16:59:55,136 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -139983124, now seen corresponding path program 33 times [2022-03-03 16:59:55,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:55,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762587129] [2022-03-03 16:59:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:55,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:55,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:55,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762587129] [2022-03-03 16:59:55,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762587129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:55,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:55,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:55,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456884452] [2022-03-03 16:59:55,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:55,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:55,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:55,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:55,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:55,250 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:55,752 INFO L93 Difference]: Finished difference Result 11126 states and 29980 transitions. [2022-03-03 16:59:55,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:55,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:55,771 INFO L225 Difference]: With dead ends: 11126 [2022-03-03 16:59:55,771 INFO L226 Difference]: Without dead ends: 10640 [2022-03-03 16:59:55,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 16:59:55,772 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 236 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3824 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:55,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3824 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:55,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10640 states. [2022-03-03 16:59:55,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10640 to 9028. [2022-03-03 16:59:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-03-03 16:59:55,917 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-03-03 16:59:55,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:55,918 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-03-03 16:59:55,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-03-03 16:59:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:55,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:55,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:55,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 16:59:55,928 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:55,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:55,929 INFO L85 PathProgramCache]: Analyzing trace with hash 560704432, now seen corresponding path program 34 times [2022-03-03 16:59:55,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:55,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539206334] [2022-03-03 16:59:55,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:55,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:56,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:56,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:56,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539206334] [2022-03-03 16:59:56,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539206334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:56,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:56,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:56,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551058838] [2022-03-03 16:59:56,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:56,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:56,039 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:56,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:56,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:56,040 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:56,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:56,622 INFO L93 Difference]: Finished difference Result 11234 states and 30257 transitions. [2022-03-03 16:59:56,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 16:59:56,622 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:56,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:56,638 INFO L225 Difference]: With dead ends: 11234 [2022-03-03 16:59:56,638 INFO L226 Difference]: Without dead ends: 10708 [2022-03-03 16:59:56,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 16:59:56,639 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 306 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:56,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3052 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:56,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-03-03 16:59:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9024. [2022-03-03 16:59:56,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:56,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-03-03 16:59:56,783 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-03-03 16:59:56,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:56,783 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-03-03 16:59:56,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:56,784 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-03-03 16:59:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:56,795 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:56,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:56,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 16:59:56,795 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:56,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:56,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1638392460, now seen corresponding path program 35 times [2022-03-03 16:59:56,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:56,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065661457] [2022-03-03 16:59:56,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:56,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:56,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:56,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:56,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065661457] [2022-03-03 16:59:56,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065661457] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:56,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:56,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:56,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939322141] [2022-03-03 16:59:56,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:56,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:56,910 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:56,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:56,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:56,911 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:57,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:57,487 INFO L93 Difference]: Finished difference Result 11332 states and 30513 transitions. [2022-03-03 16:59:57,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 16:59:57,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:57,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:57,504 INFO L225 Difference]: With dead ends: 11332 [2022-03-03 16:59:57,504 INFO L226 Difference]: Without dead ends: 10804 [2022-03-03 16:59:57,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 16:59:57,505 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 311 mSDsluCounter, 3225 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 3517 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:57,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 3517 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:57,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10804 states. [2022-03-03 16:59:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10804 to 9028. [2022-03-03 16:59:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:57,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-03-03 16:59:57,624 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-03-03 16:59:57,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:57,624 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-03-03 16:59:57,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:57,624 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-03-03 16:59:57,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:57,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:57,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:57,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 16:59:57,634 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:57,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:57,635 INFO L85 PathProgramCache]: Analyzing trace with hash -869639882, now seen corresponding path program 36 times [2022-03-03 16:59:57,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:57,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592602389] [2022-03-03 16:59:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:57,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:57,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:57,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592602389] [2022-03-03 16:59:57,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592602389] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:57,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:57,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:57,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289549852] [2022-03-03 16:59:57,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:57,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:57,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:57,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:57,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:57,741 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:58,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:58,237 INFO L93 Difference]: Finished difference Result 11168 states and 30083 transitions. [2022-03-03 16:59:58,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 16:59:58,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:58,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:58,255 INFO L225 Difference]: With dead ends: 11168 [2022-03-03 16:59:58,256 INFO L226 Difference]: Without dead ends: 10683 [2022-03-03 16:59:58,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 16:59:58,256 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 249 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3656 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:58,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3656 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-03-03 16:59:58,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 9032. [2022-03-03 16:59:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-03-03 16:59:58,417 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-03-03 16:59:58,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:58,417 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-03-03 16:59:58,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-03-03 16:59:58,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:58,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:58,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:58,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 16:59:58,431 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:58,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -188019228, now seen corresponding path program 37 times [2022-03-03 16:59:58,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:58,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133708425] [2022-03-03 16:59:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:58,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:58,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:58,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:58,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133708425] [2022-03-03 16:59:58,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133708425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:58,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:58,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:58,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111147] [2022-03-03 16:59:58,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:58,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:58,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:58,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:58,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:58,545 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:59,012 INFO L93 Difference]: Finished difference Result 11102 states and 29906 transitions. [2022-03-03 16:59:59,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 16:59:59,013 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:59,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:59,031 INFO L225 Difference]: With dead ends: 11102 [2022-03-03 16:59:59,031 INFO L226 Difference]: Without dead ends: 10608 [2022-03-03 16:59:59,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 16:59:59,032 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 233 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3813 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:59,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3813 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 16:59:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10608 states. [2022-03-03 16:59:59,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10608 to 9020. [2022-03-03 16:59:59,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-03-03 16:59:59,183 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-03-03 16:59:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:59:59,183 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-03-03 16:59:59,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-03-03 16:59:59,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 16:59:59,196 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:59:59,196 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:59:59,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 16:59:59,196 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 16:59:59,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:59:59,196 INFO L85 PathProgramCache]: Analyzing trace with hash 134914624, now seen corresponding path program 38 times [2022-03-03 16:59:59,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:59:59,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598193521] [2022-03-03 16:59:59,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:59:59,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:59:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:59:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:59:59,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:59:59,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598193521] [2022-03-03 16:59:59,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598193521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:59:59,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:59:59,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 16:59:59,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542079367] [2022-03-03 16:59:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:59:59,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 16:59:59,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:59:59,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 16:59:59,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:59:59,318 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:59:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:59:59,953 INFO L93 Difference]: Finished difference Result 11353 states and 30552 transitions. [2022-03-03 16:59:59,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 16:59:59,953 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 16:59:59,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:59:59,970 INFO L225 Difference]: With dead ends: 11353 [2022-03-03 16:59:59,971 INFO L226 Difference]: Without dead ends: 10782 [2022-03-03 16:59:59,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 16:59:59,971 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 369 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:59:59,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 3579 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:59:59,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10782 states. [2022-03-03 17:00:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10782 to 9024. [2022-03-03 17:00:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:00,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-03-03 17:00:00,144 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-03-03 17:00:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:00,145 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-03-03 17:00:00,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:00,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-03-03 17:00:00,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:00,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:00,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:00,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-03 17:00:00,156 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:00,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1924477078, now seen corresponding path program 39 times [2022-03-03 17:00:00,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:00,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663646043] [2022-03-03 17:00:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:00,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:00,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:00,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:00,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663646043] [2022-03-03 17:00:00,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663646043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:00,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:00,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:00,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843319533] [2022-03-03 17:00:00,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:00,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:00,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:00,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:00,264 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:00,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:00,841 INFO L93 Difference]: Finished difference Result 11236 states and 30245 transitions. [2022-03-03 17:00:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:00,841 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:00,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:00,857 INFO L225 Difference]: With dead ends: 11236 [2022-03-03 17:00:00,857 INFO L226 Difference]: Without dead ends: 10708 [2022-03-03 17:00:00,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:00:00,859 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 308 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:00,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 3512 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-03-03 17:00:00,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 9028. [2022-03-03 17:00:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-03-03 17:00:00,991 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-03-03 17:00:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:00,991 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-03-03 17:00:00,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-03-03 17:00:01,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:01,005 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:01,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:01,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-03 17:00:01,005 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash -583555264, now seen corresponding path program 40 times [2022-03-03 17:00:01,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:01,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713977712] [2022-03-03 17:00:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:01,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:01,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:01,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713977712] [2022-03-03 17:00:01,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713977712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:01,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:01,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:01,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966132794] [2022-03-03 17:00:01,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:01,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:01,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:01,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:01,121 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:01,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:01,591 INFO L93 Difference]: Finished difference Result 11088 states and 29859 transitions. [2022-03-03 17:00:01,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:01,608 INFO L225 Difference]: With dead ends: 11088 [2022-03-03 17:00:01,609 INFO L226 Difference]: Without dead ends: 10603 [2022-03-03 17:00:01,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:01,609 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 247 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:01,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3332 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:01,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2022-03-03 17:00:01,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 9032. [2022-03-03 17:00:01,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-03-03 17:00:01,755 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-03-03 17:00:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:01,755 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-03-03 17:00:01,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:01,755 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-03-03 17:00:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:01,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:01,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:01,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-03 17:00:01,768 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:01,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:01,768 INFO L85 PathProgramCache]: Analyzing trace with hash 98065390, now seen corresponding path program 41 times [2022-03-03 17:00:01,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:01,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640067768] [2022-03-03 17:00:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:01,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:01,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:01,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:01,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640067768] [2022-03-03 17:00:01,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640067768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:01,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:01,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:01,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386975732] [2022-03-03 17:00:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:01,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:01,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:01,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:01,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:01,887 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:02,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:02,360 INFO L93 Difference]: Finished difference Result 10990 states and 29594 transitions. [2022-03-03 17:00:02,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:00:02,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:02,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:02,379 INFO L225 Difference]: With dead ends: 10990 [2022-03-03 17:00:02,379 INFO L226 Difference]: Without dead ends: 10488 [2022-03-03 17:00:02,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:02,379 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 226 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:02,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 3361 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:02,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-03-03 17:00:02,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 9012. [2022-03-03 17:00:02,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9012 states, 9011 states have (on average 2.700810120963267) internal successors, (24337), 9011 states have internal predecessors, (24337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:02,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9012 states to 9012 states and 24337 transitions. [2022-03-03 17:00:02,530 INFO L78 Accepts]: Start accepts. Automaton has 9012 states and 24337 transitions. Word has length 109 [2022-03-03 17:00:02,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:02,531 INFO L470 AbstractCegarLoop]: Abstraction has 9012 states and 24337 transitions. [2022-03-03 17:00:02,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:02,531 INFO L276 IsEmpty]: Start isEmpty. Operand 9012 states and 24337 transitions. [2022-03-03 17:00:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:02,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:02,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:02,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-03 17:00:02,544 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1814843604, now seen corresponding path program 42 times [2022-03-03 17:00:02,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:02,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982206062] [2022-03-03 17:00:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:02,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:02,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:02,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:02,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982206062] [2022-03-03 17:00:02,651 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982206062] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:02,651 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:02,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:02,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764919511] [2022-03-03 17:00:02,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:02,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:02,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:02,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:02,652 INFO L87 Difference]: Start difference. First operand 9012 states and 24337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:03,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:03,152 INFO L93 Difference]: Finished difference Result 11024 states and 29695 transitions. [2022-03-03 17:00:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:03,153 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:03,172 INFO L225 Difference]: With dead ends: 11024 [2022-03-03 17:00:03,172 INFO L226 Difference]: Without dead ends: 10539 [2022-03-03 17:00:03,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:03,173 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 249 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:03,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3610 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:03,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-03-03 17:00:03,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-03-03 17:00:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.7004761377477577) internal successors, (24388), 9031 states have internal predecessors, (24388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:03,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24388 transitions. [2022-03-03 17:00:03,343 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24388 transitions. Word has length 109 [2022-03-03 17:00:03,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:03,344 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24388 transitions. [2022-03-03 17:00:03,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24388 transitions. [2022-03-03 17:00:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:03,358 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:03,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:03,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-03 17:00:03,358 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:03,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:03,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1133222950, now seen corresponding path program 43 times [2022-03-03 17:00:03,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:03,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740915944] [2022-03-03 17:00:03,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:03,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:03,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:03,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:03,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740915944] [2022-03-03 17:00:03,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740915944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:03,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:03,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:03,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159455759] [2022-03-03 17:00:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:03,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:03,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:03,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:03,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:03,472 INFO L87 Difference]: Start difference. First operand 9032 states and 24388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:03,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:03,967 INFO L93 Difference]: Finished difference Result 10982 states and 29584 transitions. [2022-03-03 17:00:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:03,968 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:03,986 INFO L225 Difference]: With dead ends: 10982 [2022-03-03 17:00:03,986 INFO L226 Difference]: Without dead ends: 10496 [2022-03-03 17:00:03,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 17:00:03,987 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 232 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:03,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3806 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:04,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10496 states. [2022-03-03 17:00:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10496 to 9028. [2022-03-03 17:00:04,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7004541929766255) internal successors, (24377), 9027 states have internal predecessors, (24377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:04,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24377 transitions. [2022-03-03 17:00:04,142 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24377 transitions. Word has length 109 [2022-03-03 17:00:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:04,142 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24377 transitions. [2022-03-03 17:00:04,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24377 transitions. [2022-03-03 17:00:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:04,155 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:04,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:04,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-03 17:00:04,156 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:04,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:04,156 INFO L85 PathProgramCache]: Analyzing trace with hash -432535394, now seen corresponding path program 44 times [2022-03-03 17:00:04,156 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:04,156 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843856352] [2022-03-03 17:00:04,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:04,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:04,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:04,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843856352] [2022-03-03 17:00:04,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843856352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:04,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:04,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:04,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592879104] [2022-03-03 17:00:04,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:04,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:04,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:04,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:04,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:04,328 INFO L87 Difference]: Start difference. First operand 9028 states and 24377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:04,977 INFO L93 Difference]: Finished difference Result 11050 states and 29751 transitions. [2022-03-03 17:00:04,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:00:04,978 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:04,995 INFO L225 Difference]: With dead ends: 11050 [2022-03-03 17:00:04,995 INFO L226 Difference]: Without dead ends: 10524 [2022-03-03 17:00:04,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:00:04,996 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 300 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:04,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3543 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:05,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2022-03-03 17:00:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 9024. [2022-03-03 17:00:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.700432228748753) internal successors, (24366), 9023 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24366 transitions. [2022-03-03 17:00:05,139 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24366 transitions. Word has length 109 [2022-03-03 17:00:05,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:05,140 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24366 transitions. [2022-03-03 17:00:05,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:05,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24366 transitions. [2022-03-03 17:00:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:05,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:05,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:05,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-03 17:00:05,152 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:05,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:05,152 INFO L85 PathProgramCache]: Analyzing trace with hash 645152634, now seen corresponding path program 45 times [2022-03-03 17:00:05,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:05,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264656099] [2022-03-03 17:00:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:05,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:05,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:05,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264656099] [2022-03-03 17:00:05,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264656099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:05,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:05,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:05,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887274813] [2022-03-03 17:00:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:05,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:05,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:05,285 INFO L87 Difference]: Start difference. First operand 9024 states and 24366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:05,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:05,903 INFO L93 Difference]: Finished difference Result 11180 states and 30095 transitions. [2022-03-03 17:00:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:05,904 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:05,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:05,922 INFO L225 Difference]: With dead ends: 11180 [2022-03-03 17:00:05,923 INFO L226 Difference]: Without dead ends: 10652 [2022-03-03 17:00:05,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:00:05,923 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 335 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:05,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3694 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:05,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10652 states. [2022-03-03 17:00:06,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 9028. [2022-03-03 17:00:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.7000110778774786) internal successors, (24373), 9027 states have internal predecessors, (24373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24373 transitions. [2022-03-03 17:00:06,157 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24373 transitions. Word has length 109 [2022-03-03 17:00:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:06,157 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24373 transitions. [2022-03-03 17:00:06,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24373 transitions. [2022-03-03 17:00:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:06,170 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:06,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:06,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-03 17:00:06,170 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1862879708, now seen corresponding path program 46 times [2022-03-03 17:00:06,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:06,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306740764] [2022-03-03 17:00:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:06,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:06,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306740764] [2022-03-03 17:00:06,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306740764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:06,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:06,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:06,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140231887] [2022-03-03 17:00:06,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:06,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:06,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:06,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:06,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:06,306 INFO L87 Difference]: Start difference. First operand 9028 states and 24373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:06,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:06,782 INFO L93 Difference]: Finished difference Result 11016 states and 29665 transitions. [2022-03-03 17:00:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:06,782 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:06,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:06,806 INFO L225 Difference]: With dead ends: 11016 [2022-03-03 17:00:06,806 INFO L226 Difference]: Without dead ends: 10531 [2022-03-03 17:00:06,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:06,807 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 266 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 3602 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:06,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 3602 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:06,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10531 states. [2022-03-03 17:00:06,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10531 to 9032. [2022-03-03 17:00:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.699590300077511) internal successors, (24380), 9031 states have internal predecessors, (24380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:07,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24380 transitions. [2022-03-03 17:00:07,014 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24380 transitions. Word has length 109 [2022-03-03 17:00:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:07,014 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24380 transitions. [2022-03-03 17:00:07,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:07,015 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24380 transitions. [2022-03-03 17:00:07,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:07,027 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:07,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:07,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-03 17:00:07,027 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:07,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1181259054, now seen corresponding path program 47 times [2022-03-03 17:00:07,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:07,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689563403] [2022-03-03 17:00:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:07,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:07,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:07,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689563403] [2022-03-03 17:00:07,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689563403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:07,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:07,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:07,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497774605] [2022-03-03 17:00:07,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:07,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:07,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:07,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:07,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:07,147 INFO L87 Difference]: Start difference. First operand 9032 states and 24380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:07,672 INFO L93 Difference]: Finished difference Result 10950 states and 29488 transitions. [2022-03-03 17:00:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:07,672 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:07,691 INFO L225 Difference]: With dead ends: 10950 [2022-03-03 17:00:07,691 INFO L226 Difference]: Without dead ends: 10456 [2022-03-03 17:00:07,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:07,691 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 254 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:07,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3530 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:07,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10456 states. [2022-03-03 17:00:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10456 to 9020. [2022-03-03 17:00:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.7004102450382526) internal successors, (24355), 9019 states have internal predecessors, (24355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:07,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24355 transitions. [2022-03-03 17:00:07,836 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24355 transitions. Word has length 109 [2022-03-03 17:00:07,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:07,836 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24355 transitions. [2022-03-03 17:00:07,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:07,836 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24355 transitions. [2022-03-03 17:00:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:07,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:07,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:07,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-03 17:00:07,848 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:07,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:07,848 INFO L85 PathProgramCache]: Analyzing trace with hash -858325202, now seen corresponding path program 48 times [2022-03-03 17:00:07,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:07,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934195964] [2022-03-03 17:00:07,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:07,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:07,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:07,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:07,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934195964] [2022-03-03 17:00:07,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934195964] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:07,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:07,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:07,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385262574] [2022-03-03 17:00:07,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:07,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:07,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:07,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:07,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:07,955 INFO L87 Difference]: Start difference. First operand 9020 states and 24355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:08,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:08,699 INFO L93 Difference]: Finished difference Result 11313 states and 30442 transitions. [2022-03-03 17:00:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:00:08,699 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:08,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:08,718 INFO L225 Difference]: With dead ends: 11313 [2022-03-03 17:00:08,719 INFO L226 Difference]: Without dead ends: 10742 [2022-03-03 17:00:08,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:00:08,720 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 400 mSDsluCounter, 3746 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 4019 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:08,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [400 Valid, 4019 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-03-03 17:00:08,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 9024. [2022-03-03 17:00:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6999889172115705) internal successors, (24362), 9023 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24362 transitions. [2022-03-03 17:00:08,875 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24362 transitions. Word has length 109 [2022-03-03 17:00:08,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:08,875 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24362 transitions. [2022-03-03 17:00:08,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:08,875 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24362 transitions. [2022-03-03 17:00:08,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:08,887 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:08,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:08,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-03 17:00:08,888 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:08,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash 931237252, now seen corresponding path program 49 times [2022-03-03 17:00:08,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:08,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347596737] [2022-03-03 17:00:08,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:08,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:09,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:09,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:09,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347596737] [2022-03-03 17:00:09,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347596737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:09,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:09,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:09,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569726983] [2022-03-03 17:00:09,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:09,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:09,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:09,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:09,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:09,009 INFO L87 Difference]: Start difference. First operand 9024 states and 24362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:09,658 INFO L93 Difference]: Finished difference Result 11188 states and 30113 transitions. [2022-03-03 17:00:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:09,659 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:09,676 INFO L225 Difference]: With dead ends: 11188 [2022-03-03 17:00:09,676 INFO L226 Difference]: Without dead ends: 10660 [2022-03-03 17:00:09,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:00:09,677 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 334 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 3930 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:09,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 3930 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2022-03-03 17:00:09,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 9028. [2022-03-03 17:00:09,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6995679627783318) internal successors, (24369), 9027 states have internal predecessors, (24369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:09,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24369 transitions. [2022-03-03 17:00:09,831 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24369 transitions. Word has length 109 [2022-03-03 17:00:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:09,831 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24369 transitions. [2022-03-03 17:00:09,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:09,831 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24369 transitions. [2022-03-03 17:00:09,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:09,844 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:09,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:09,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-03 17:00:09,845 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:09,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1576795090, now seen corresponding path program 50 times [2022-03-03 17:00:09,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:09,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974833479] [2022-03-03 17:00:09,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:09,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:09,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:09,979 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:09,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974833479] [2022-03-03 17:00:09,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974833479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:09,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:09,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:09,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6625559] [2022-03-03 17:00:09,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:09,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:09,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:09,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:09,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:09,980 INFO L87 Difference]: Start difference. First operand 9028 states and 24369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:10,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:10,441 INFO L93 Difference]: Finished difference Result 11024 states and 29683 transitions. [2022-03-03 17:00:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:10,441 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:10,458 INFO L225 Difference]: With dead ends: 11024 [2022-03-03 17:00:10,458 INFO L226 Difference]: Without dead ends: 10539 [2022-03-03 17:00:10,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:10,459 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 267 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:10,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2998 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:10,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states. [2022-03-03 17:00:10,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10539 to 9032. [2022-03-03 17:00:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.6991473812423874) internal successors, (24376), 9031 states have internal predecessors, (24376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:10,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24376 transitions. [2022-03-03 17:00:10,599 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24376 transitions. Word has length 109 [2022-03-03 17:00:10,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:10,599 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24376 transitions. [2022-03-03 17:00:10,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24376 transitions. [2022-03-03 17:00:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:10,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:10,611 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:10,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-03 17:00:10,612 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:10,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:10,612 INFO L85 PathProgramCache]: Analyzing trace with hash -895174436, now seen corresponding path program 51 times [2022-03-03 17:00:10,612 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:10,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580630914] [2022-03-03 17:00:10,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:10,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:10,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:10,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580630914] [2022-03-03 17:00:10,732 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580630914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:10,732 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:10,732 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:10,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277183801] [2022-03-03 17:00:10,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:10,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:10,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:10,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:10,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:10,733 INFO L87 Difference]: Start difference. First operand 9032 states and 24376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:11,206 INFO L93 Difference]: Finished difference Result 10950 states and 29484 transitions. [2022-03-03 17:00:11,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:00:11,207 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:11,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:11,224 INFO L225 Difference]: With dead ends: 10950 [2022-03-03 17:00:11,225 INFO L226 Difference]: Without dead ends: 10452 [2022-03-03 17:00:11,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:11,225 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 253 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:11,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3728 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:11,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10452 states. [2022-03-03 17:00:11,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10452 to 9016. [2022-03-03 17:00:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 2.7003882418191902) internal successors, (24344), 9015 states have internal predecessors, (24344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:11,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 24344 transitions. [2022-03-03 17:00:11,379 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 24344 transitions. Word has length 109 [2022-03-03 17:00:11,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:11,379 INFO L470 AbstractCegarLoop]: Abstraction has 9016 states and 24344 transitions. [2022-03-03 17:00:11,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:11,379 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 24344 transitions. [2022-03-03 17:00:11,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:11,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:11,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:11,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-03 17:00:11,392 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:11,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:11,393 INFO L85 PathProgramCache]: Analyzing trace with hash -220682792, now seen corresponding path program 52 times [2022-03-03 17:00:11,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:11,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674353461] [2022-03-03 17:00:11,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:11,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:11,528 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:11,528 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674353461] [2022-03-03 17:00:11,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674353461] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:11,528 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:11,528 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:11,528 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742635954] [2022-03-03 17:00:11,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:11,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:11,528 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:11,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:11,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:11,529 INFO L87 Difference]: Start difference. First operand 9016 states and 24344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:12,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:12,374 INFO L93 Difference]: Finished difference Result 11293 states and 30362 transitions. [2022-03-03 17:00:12,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 17:00:12,375 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:12,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:12,393 INFO L225 Difference]: With dead ends: 11293 [2022-03-03 17:00:12,393 INFO L226 Difference]: Without dead ends: 10679 [2022-03-03 17:00:12,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=844, Invalid=2696, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:00:12,394 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 485 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 3435 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:12,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 3435 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:12,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10679 states. [2022-03-03 17:00:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10679 to 9020. [2022-03-03 17:00:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9020 states, 9019 states have (on average 2.6999667368887903) internal successors, (24351), 9019 states have internal predecessors, (24351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9020 states to 9020 states and 24351 transitions. [2022-03-03 17:00:12,596 INFO L78 Accepts]: Start accepts. Automaton has 9020 states and 24351 transitions. Word has length 109 [2022-03-03 17:00:12,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:12,596 INFO L470 AbstractCegarLoop]: Abstraction has 9020 states and 24351 transitions. [2022-03-03 17:00:12,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:12,597 INFO L276 IsEmpty]: Start isEmpty. Operand 9020 states and 24351 transitions. [2022-03-03 17:00:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:12,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:12,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:12,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-03 17:00:12,609 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:12,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:12,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1277978946, now seen corresponding path program 53 times [2022-03-03 17:00:12,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:12,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093188899] [2022-03-03 17:00:12,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:12,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:12,725 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:12,725 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093188899] [2022-03-03 17:00:12,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093188899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:12,725 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:12,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:12,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084332326] [2022-03-03 17:00:12,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:12,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:12,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:12,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:12,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:12,726 INFO L87 Difference]: Start difference. First operand 9020 states and 24351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:13,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:13,395 INFO L93 Difference]: Finished difference Result 11153 states and 29998 transitions. [2022-03-03 17:00:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:00:13,395 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:13,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:13,414 INFO L225 Difference]: With dead ends: 11153 [2022-03-03 17:00:13,414 INFO L226 Difference]: Without dead ends: 10582 [2022-03-03 17:00:13,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:00:13,415 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 413 mSDsluCounter, 3707 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3975 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:13,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3975 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:13,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-03-03 17:00:13,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 9024. [2022-03-03 17:00:13,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 9023 states have (on average 2.6995456056743876) internal successors, (24358), 9023 states have internal predecessors, (24358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 24358 transitions. [2022-03-03 17:00:13,579 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 24358 transitions. Word has length 109 [2022-03-03 17:00:13,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:13,579 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 24358 transitions. [2022-03-03 17:00:13,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:13,580 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 24358 transitions. [2022-03-03 17:00:13,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:13,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:13,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:13,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-03 17:00:13,594 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:13,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash 511583508, now seen corresponding path program 54 times [2022-03-03 17:00:13,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:13,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517690840] [2022-03-03 17:00:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:13,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:13,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:13,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:13,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517690840] [2022-03-03 17:00:13,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517690840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:13,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:13,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:13,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138405735] [2022-03-03 17:00:13,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:13,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:13,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:13,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:13,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:13,710 INFO L87 Difference]: Start difference. First operand 9024 states and 24358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:14,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:14,288 INFO L93 Difference]: Finished difference Result 11040 states and 29702 transitions. [2022-03-03 17:00:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:14,288 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:14,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:14,307 INFO L225 Difference]: With dead ends: 11040 [2022-03-03 17:00:14,308 INFO L226 Difference]: Without dead ends: 10512 [2022-03-03 17:00:14,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:00:14,308 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 351 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3861 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:14,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 3861 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:14,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2022-03-03 17:00:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 9028. [2022-03-03 17:00:14,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9028 states, 9027 states have (on average 2.6991248476791845) internal successors, (24365), 9027 states have internal predecessors, (24365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9028 states to 9028 states and 24365 transitions. [2022-03-03 17:00:14,463 INFO L78 Accepts]: Start accepts. Automaton has 9028 states and 24365 transitions. Word has length 109 [2022-03-03 17:00:14,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:14,464 INFO L470 AbstractCegarLoop]: Abstraction has 9028 states and 24365 transitions. [2022-03-03 17:00:14,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:14,464 INFO L276 IsEmpty]: Start isEmpty. Operand 9028 states and 24365 transitions. [2022-03-03 17:00:14,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:14,476 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:14,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:14,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-03 17:00:14,477 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:14,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:14,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1996448834, now seen corresponding path program 55 times [2022-03-03 17:00:14,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:14,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087888657] [2022-03-03 17:00:14,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:14,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:14,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:14,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087888657] [2022-03-03 17:00:14,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087888657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:14,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:14,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:14,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515818908] [2022-03-03 17:00:14,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:14,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:14,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:14,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:14,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:14,606 INFO L87 Difference]: Start difference. First operand 9028 states and 24365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:15,072 INFO L93 Difference]: Finished difference Result 10900 states and 29338 transitions. [2022-03-03 17:00:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:15,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:15,089 INFO L225 Difference]: With dead ends: 10900 [2022-03-03 17:00:15,090 INFO L226 Difference]: Without dead ends: 10415 [2022-03-03 17:00:15,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:15,091 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 290 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:15,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3166 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:15,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10415 states. [2022-03-03 17:00:15,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10415 to 9032. [2022-03-03 17:00:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9032 states, 9031 states have (on average 2.698704462407264) internal successors, (24372), 9031 states have internal predecessors, (24372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9032 states to 9032 states and 24372 transitions. [2022-03-03 17:00:15,255 INFO L78 Accepts]: Start accepts. Automaton has 9032 states and 24372 transitions. Word has length 109 [2022-03-03 17:00:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:15,255 INFO L470 AbstractCegarLoop]: Abstraction has 9032 states and 24372 transitions. [2022-03-03 17:00:15,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 9032 states and 24372 transitions. [2022-03-03 17:00:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:15,268 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:15,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:15,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-03 17:00:15,269 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:15,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:15,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1314828180, now seen corresponding path program 56 times [2022-03-03 17:00:15,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:15,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458537142] [2022-03-03 17:00:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:15,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:15,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:15,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458537142] [2022-03-03 17:00:15,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458537142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:15,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:15,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:15,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024793330] [2022-03-03 17:00:15,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:15,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:15,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:15,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:15,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:15,383 INFO L87 Difference]: Start difference. First operand 9032 states and 24372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:15,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:15,812 INFO L93 Difference]: Finished difference Result 10750 states and 28930 transitions. [2022-03-03 17:00:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:00:15,812 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:15,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:15,829 INFO L225 Difference]: With dead ends: 10750 [2022-03-03 17:00:15,830 INFO L226 Difference]: Without dead ends: 10218 [2022-03-03 17:00:15,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:00:15,830 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 247 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:15,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 3434 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:15,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-03-03 17:00:15,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8982. [2022-03-03 17:00:15,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8982 states, 8981 states have (on average 2.701592250306202) internal successors, (24263), 8981 states have internal predecessors, (24263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8982 states to 8982 states and 24263 transitions. [2022-03-03 17:00:15,982 INFO L78 Accepts]: Start accepts. Automaton has 8982 states and 24263 transitions. Word has length 109 [2022-03-03 17:00:15,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:15,982 INFO L470 AbstractCegarLoop]: Abstraction has 8982 states and 24263 transitions. [2022-03-03 17:00:15,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8982 states and 24263 transitions. [2022-03-03 17:00:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:15,994 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:15,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:15,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-03 17:00:15,994 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:15,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1562377566, now seen corresponding path program 57 times [2022-03-03 17:00:15,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:15,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356823605] [2022-03-03 17:00:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:15,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:16,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:16,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356823605] [2022-03-03 17:00:16,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356823605] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:16,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:16,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:16,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482340916] [2022-03-03 17:00:16,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:16,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:16,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:16,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:16,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:16,112 INFO L87 Difference]: Start difference. First operand 8982 states and 24263 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:16,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:16,576 INFO L93 Difference]: Finished difference Result 11458 states and 30897 transitions. [2022-03-03 17:00:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:00:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:16,597 INFO L225 Difference]: With dead ends: 11458 [2022-03-03 17:00:16,597 INFO L226 Difference]: Without dead ends: 10973 [2022-03-03 17:00:16,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:00:16,597 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 216 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:16,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2564 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:16,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-03-03 17:00:16,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 9010. [2022-03-03 17:00:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7012987012987013) internal successors, (24336), 9009 states have internal predecessors, (24336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:16,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24336 transitions. [2022-03-03 17:00:16,769 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24336 transitions. Word has length 109 [2022-03-03 17:00:16,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:16,769 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24336 transitions. [2022-03-03 17:00:16,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:16,769 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24336 transitions. [2022-03-03 17:00:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:16,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:16,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:16,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-03 17:00:16,785 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:16,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash -880756912, now seen corresponding path program 58 times [2022-03-03 17:00:16,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:16,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733345116] [2022-03-03 17:00:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:16,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:16,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:16,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733345116] [2022-03-03 17:00:16,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733345116] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:16,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:16,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:16,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746849067] [2022-03-03 17:00:16,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:16,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:16,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:16,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:16,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:16,926 INFO L87 Difference]: Start difference. First operand 9010 states and 24336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:17,472 INFO L93 Difference]: Finished difference Result 11424 states and 30808 transitions. [2022-03-03 17:00:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:17,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:17,491 INFO L225 Difference]: With dead ends: 11424 [2022-03-03 17:00:17,491 INFO L226 Difference]: Without dead ends: 10938 [2022-03-03 17:00:17,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:17,492 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 207 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:17,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 3090 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:17,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-03-03 17:00:17,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 9006. [2022-03-03 17:00:17,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7012770682953913) internal successors, (24325), 9005 states have internal predecessors, (24325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24325 transitions. [2022-03-03 17:00:17,651 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24325 transitions. Word has length 109 [2022-03-03 17:00:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:17,651 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24325 transitions. [2022-03-03 17:00:17,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:17,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24325 transitions. [2022-03-03 17:00:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:17,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:17,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:17,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-03 17:00:17,664 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:17,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:17,664 INFO L85 PathProgramCache]: Analyzing trace with hash -180069356, now seen corresponding path program 59 times [2022-03-03 17:00:17,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:17,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763445494] [2022-03-03 17:00:17,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:17,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:17,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:17,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:17,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763445494] [2022-03-03 17:00:17,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763445494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:17,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:17,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:17,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73381512] [2022-03-03 17:00:17,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:17,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:17,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:17,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:17,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:17,785 INFO L87 Difference]: Start difference. First operand 9006 states and 24325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:18,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:18,428 INFO L93 Difference]: Finished difference Result 11460 states and 30903 transitions. [2022-03-03 17:00:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:18,428 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:18,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:18,448 INFO L225 Difference]: With dead ends: 11460 [2022-03-03 17:00:18,448 INFO L226 Difference]: Without dead ends: 10934 [2022-03-03 17:00:18,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:00:18,449 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 263 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:18,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2643 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-03-03 17:00:18,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 9002. [2022-03-03 17:00:18,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.701255416064882) internal successors, (24314), 9001 states have internal predecessors, (24314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24314 transitions. [2022-03-03 17:00:18,670 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24314 transitions. Word has length 109 [2022-03-03 17:00:18,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:18,670 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24314 transitions. [2022-03-03 17:00:18,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24314 transitions. [2022-03-03 17:00:18,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:18,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:18,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:18,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-03 17:00:18,681 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:18,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:18,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1970821476, now seen corresponding path program 60 times [2022-03-03 17:00:18,681 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:18,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118322518] [2022-03-03 17:00:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:18,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:18,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:18,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:18,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118322518] [2022-03-03 17:00:18,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118322518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:18,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:18,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:18,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817294261] [2022-03-03 17:00:18,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:18,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:18,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:18,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:18,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:18,800 INFO L87 Difference]: Start difference. First operand 9002 states and 24314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:19,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:19,498 INFO L93 Difference]: Finished difference Result 11632 states and 31348 transitions. [2022-03-03 17:00:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:00:19,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:19,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:19,516 INFO L225 Difference]: With dead ends: 11632 [2022-03-03 17:00:19,517 INFO L226 Difference]: Without dead ends: 11066 [2022-03-03 17:00:19,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:00:19,517 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 324 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:19,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 2844 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:19,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-03-03 17:00:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8998. [2022-03-03 17:00:19,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7012337445815273) internal successors, (24303), 8997 states have internal predecessors, (24303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:19,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24303 transitions. [2022-03-03 17:00:19,669 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24303 transitions. Word has length 109 [2022-03-03 17:00:19,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:19,669 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24303 transitions. [2022-03-03 17:00:19,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24303 transitions. [2022-03-03 17:00:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:19,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:19,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:19,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-03 17:00:19,682 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:19,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash -531733336, now seen corresponding path program 61 times [2022-03-03 17:00:19,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:19,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847520235] [2022-03-03 17:00:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:19,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:19,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:19,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847520235] [2022-03-03 17:00:19,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847520235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:19,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:19,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:19,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452532835] [2022-03-03 17:00:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:19,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:19,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:19,804 INFO L87 Difference]: Start difference. First operand 8998 states and 24303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:20,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:20,281 INFO L93 Difference]: Finished difference Result 11534 states and 31102 transitions. [2022-03-03 17:00:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:20,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:20,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:20,303 INFO L225 Difference]: With dead ends: 11534 [2022-03-03 17:00:20,304 INFO L226 Difference]: Without dead ends: 11049 [2022-03-03 17:00:20,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:00:20,304 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 219 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:20,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3092 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:20,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11049 states. [2022-03-03 17:00:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11049 to 9010. [2022-03-03 17:00:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-03 17:00:20,481 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-03 17:00:20,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:20,481 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-03 17:00:20,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:20,481 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-03 17:00:20,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:20,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:20,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:20,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-03 17:00:20,495 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 149887318, now seen corresponding path program 62 times [2022-03-03 17:00:20,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:20,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59969933] [2022-03-03 17:00:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:20,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:20,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:20,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:20,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59969933] [2022-03-03 17:00:20,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59969933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:20,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:20,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:20,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937613555] [2022-03-03 17:00:20,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:20,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:20,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:20,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:20,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:20,617 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:21,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:21,142 INFO L93 Difference]: Finished difference Result 11492 states and 30991 transitions. [2022-03-03 17:00:21,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:21,143 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:21,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:21,162 INFO L225 Difference]: With dead ends: 11492 [2022-03-03 17:00:21,163 INFO L226 Difference]: Without dead ends: 11006 [2022-03-03 17:00:21,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:21,163 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 200 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:21,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 3425 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:21,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-03-03 17:00:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 9006. [2022-03-03 17:00:21,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-03 17:00:21,316 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-03 17:00:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:21,316 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-03 17:00:21,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:21,316 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-03 17:00:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:21,328 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:21,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:21,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-03 17:00:21,329 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:21,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:21,329 INFO L85 PathProgramCache]: Analyzing trace with hash 850574874, now seen corresponding path program 63 times [2022-03-03 17:00:21,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:21,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594335046] [2022-03-03 17:00:21,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:21,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:21,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:21,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594335046] [2022-03-03 17:00:21,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594335046] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:21,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:21,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:21,441 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936705287] [2022-03-03 17:00:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:21,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:21,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:21,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:21,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:21,441 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:22,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:22,061 INFO L93 Difference]: Finished difference Result 11620 states and 31323 transitions. [2022-03-03 17:00:22,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:22,062 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:22,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:22,081 INFO L225 Difference]: With dead ends: 11620 [2022-03-03 17:00:22,082 INFO L226 Difference]: Without dead ends: 11094 [2022-03-03 17:00:22,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:00:22,083 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 269 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:22,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2964 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:22,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-03-03 17:00:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9002. [2022-03-03 17:00:22,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-03 17:00:22,253 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-03 17:00:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:22,253 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-03 17:00:22,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-03 17:00:22,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:22,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:22,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:22,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-03 17:00:22,266 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:22,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:22,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1928262902, now seen corresponding path program 64 times [2022-03-03 17:00:22,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:22,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697403962] [2022-03-03 17:00:22,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:22,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:22,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:22,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697403962] [2022-03-03 17:00:22,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697403962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:22,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:22,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:22,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185490570] [2022-03-03 17:00:22,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:22,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:22,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:22,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:22,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:22,382 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:22,961 INFO L93 Difference]: Finished difference Result 11622 states and 31315 transitions. [2022-03-03 17:00:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:00:22,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:22,981 INFO L225 Difference]: With dead ends: 11622 [2022-03-03 17:00:22,981 INFO L226 Difference]: Without dead ends: 11094 [2022-03-03 17:00:22,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:00:22,982 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 271 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:22,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3555 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:23,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-03-03 17:00:23,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 9006. [2022-03-03 17:00:23,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:23,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-03 17:00:23,140 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-03 17:00:23,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:23,140 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-03 17:00:23,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-03 17:00:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:23,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:23,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:23,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-03 17:00:23,153 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:23,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:23,154 INFO L85 PathProgramCache]: Analyzing trace with hash -579769440, now seen corresponding path program 65 times [2022-03-03 17:00:23,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:23,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814475831] [2022-03-03 17:00:23,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:23,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:23,271 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:23,271 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814475831] [2022-03-03 17:00:23,271 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814475831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:23,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:23,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:23,272 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919519904] [2022-03-03 17:00:23,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:23,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:23,272 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:23,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:23,272 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:23,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:23,775 INFO L93 Difference]: Finished difference Result 11474 states and 30929 transitions. [2022-03-03 17:00:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:23,775 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:23,795 INFO L225 Difference]: With dead ends: 11474 [2022-03-03 17:00:23,795 INFO L226 Difference]: Without dead ends: 10989 [2022-03-03 17:00:23,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:00:23,796 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 220 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:23,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3105 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:23,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10989 states. [2022-03-03 17:00:23,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10989 to 9010. [2022-03-03 17:00:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-03-03 17:00:23,955 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-03-03 17:00:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:23,955 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-03-03 17:00:23,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-03-03 17:00:23,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:23,967 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:23,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:23,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-03 17:00:23,968 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:23,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:23,968 INFO L85 PathProgramCache]: Analyzing trace with hash 101851214, now seen corresponding path program 66 times [2022-03-03 17:00:23,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:23,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001436684] [2022-03-03 17:00:23,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:23,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:24,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:24,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001436684] [2022-03-03 17:00:24,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001436684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:24,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:24,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:24,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194530339] [2022-03-03 17:00:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:24,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:24,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:24,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:24,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:24,078 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:24,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:24,558 INFO L93 Difference]: Finished difference Result 11392 states and 30708 transitions. [2022-03-03 17:00:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:24,558 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:24,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:24,577 INFO L225 Difference]: With dead ends: 11392 [2022-03-03 17:00:24,577 INFO L226 Difference]: Without dead ends: 10894 [2022-03-03 17:00:24,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:24,578 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 198 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:24,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3238 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:24,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-03-03 17:00:24,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 8994. [2022-03-03 17:00:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7012120538196376) internal successors, (24292), 8993 states have internal predecessors, (24292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24292 transitions. [2022-03-03 17:00:24,790 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24292 transitions. Word has length 109 [2022-03-03 17:00:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:24,791 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24292 transitions. [2022-03-03 17:00:24,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24292 transitions. [2022-03-03 17:00:24,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:24,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:24,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:24,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-03 17:00:24,803 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:24,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:24,804 INFO L85 PathProgramCache]: Analyzing trace with hash 550210976, now seen corresponding path program 67 times [2022-03-03 17:00:24,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:24,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076661486] [2022-03-03 17:00:24,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:24,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:24,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:24,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:24,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076661486] [2022-03-03 17:00:24,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076661486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:24,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:24,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:24,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842172668] [2022-03-03 17:00:24,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:24,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:24,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:24,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:24,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:24,930 INFO L87 Difference]: Start difference. First operand 8994 states and 24292 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:25,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:25,394 INFO L93 Difference]: Finished difference Result 11410 states and 30761 transitions. [2022-03-03 17:00:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:25,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:25,412 INFO L225 Difference]: With dead ends: 11410 [2022-03-03 17:00:25,412 INFO L226 Difference]: Without dead ends: 10925 [2022-03-03 17:00:25,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:00:25,413 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 208 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:25,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3003 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10925 states. [2022-03-03 17:00:25,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10925 to 9010. [2022-03-03 17:00:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:25,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-03 17:00:25,565 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-03 17:00:25,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:25,565 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-03 17:00:25,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:25,565 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-03 17:00:25,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:25,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:25,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:25,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-03 17:00:25,577 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:25,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:25,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1231831630, now seen corresponding path program 68 times [2022-03-03 17:00:25,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:25,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586872924] [2022-03-03 17:00:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:25,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:25,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:25,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586872924] [2022-03-03 17:00:25,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586872924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:25,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:25,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:25,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308132482] [2022-03-03 17:00:25,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:25,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:25,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:25,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:25,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:25,685 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:26,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:26,169 INFO L93 Difference]: Finished difference Result 11368 states and 30650 transitions. [2022-03-03 17:00:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:26,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:26,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:26,189 INFO L225 Difference]: With dead ends: 11368 [2022-03-03 17:00:26,189 INFO L226 Difference]: Without dead ends: 10882 [2022-03-03 17:00:26,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=343, Invalid=1139, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:26,190 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 196 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3416 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:26,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 3416 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:26,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2022-03-03 17:00:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 9006. [2022-03-03 17:00:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:26,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-03 17:00:26,352 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-03 17:00:26,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:26,352 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-03 17:00:26,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:26,352 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-03 17:00:26,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:26,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:26,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:26,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-03 17:00:26,365 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:26,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:26,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1932519186, now seen corresponding path program 69 times [2022-03-03 17:00:26,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:26,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166854348] [2022-03-03 17:00:26,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:26,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:26,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:26,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166854348] [2022-03-03 17:00:26,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166854348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:26,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:26,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:26,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733080821] [2022-03-03 17:00:26,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:26,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:26,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:26,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:26,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:26,496 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:27,077 INFO L93 Difference]: Finished difference Result 11496 states and 30982 transitions. [2022-03-03 17:00:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:00:27,077 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:27,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:27,096 INFO L225 Difference]: With dead ends: 11496 [2022-03-03 17:00:27,096 INFO L226 Difference]: Without dead ends: 10970 [2022-03-03 17:00:27,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:00:27,096 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 265 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:27,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 2788 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:27,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2022-03-03 17:00:27,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 9002. [2022-03-03 17:00:27,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:27,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-03 17:00:27,273 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-03 17:00:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:27,273 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-03 17:00:27,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:27,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-03 17:00:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:27,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:27,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:27,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-03 17:00:27,286 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1284760082, now seen corresponding path program 70 times [2022-03-03 17:00:27,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:27,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008781446] [2022-03-03 17:00:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:27,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:27,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008781446] [2022-03-03 17:00:27,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008781446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:27,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:27,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:27,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340431982] [2022-03-03 17:00:27,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:27,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:27,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:27,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:27,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:27,404 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:28,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:28,002 INFO L93 Difference]: Finished difference Result 11578 states and 31194 transitions. [2022-03-03 17:00:28,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:28,003 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:28,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:28,021 INFO L225 Difference]: With dead ends: 11578 [2022-03-03 17:00:28,021 INFO L226 Difference]: Without dead ends: 11050 [2022-03-03 17:00:28,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:00:28,022 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 277 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:28,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 2918 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2022-03-03 17:00:28,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 9006. [2022-03-03 17:00:28,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:28,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-03 17:00:28,177 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-03 17:00:28,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:28,177 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-03 17:00:28,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:28,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-03 17:00:28,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:28,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:28,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:28,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-03 17:00:28,190 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:28,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:28,190 INFO L85 PathProgramCache]: Analyzing trace with hash 502174872, now seen corresponding path program 71 times [2022-03-03 17:00:28,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:28,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422734226] [2022-03-03 17:00:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:28,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:28,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:28,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:28,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:28,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422734226] [2022-03-03 17:00:28,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422734226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:28,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:28,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:28,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490870703] [2022-03-03 17:00:28,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:28,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:28,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:28,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:28,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:28,299 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:28,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:28,781 INFO L93 Difference]: Finished difference Result 11414 states and 30764 transitions. [2022-03-03 17:00:28,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:28,782 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:28,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:28,803 INFO L225 Difference]: With dead ends: 11414 [2022-03-03 17:00:28,803 INFO L226 Difference]: Without dead ends: 10929 [2022-03-03 17:00:28,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:28,804 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 216 mSDsluCounter, 2845 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:28,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 3104 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10929 states. [2022-03-03 17:00:28,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10929 to 9010. [2022-03-03 17:00:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6999666999667) internal successors, (24324), 9009 states have internal predecessors, (24324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24324 transitions. [2022-03-03 17:00:28,968 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24324 transitions. Word has length 109 [2022-03-03 17:00:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:28,968 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24324 transitions. [2022-03-03 17:00:28,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24324 transitions. [2022-03-03 17:00:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:28,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:28,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:28,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-03 17:00:28,981 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:28,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1183795526, now seen corresponding path program 72 times [2022-03-03 17:00:28,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:28,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578134475] [2022-03-03 17:00:28,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:28,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:29,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:29,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:29,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578134475] [2022-03-03 17:00:29,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578134475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:29,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:29,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:29,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160428062] [2022-03-03 17:00:29,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:29,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:29,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:29,090 INFO L87 Difference]: Start difference. First operand 9010 states and 24324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:29,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:29,561 INFO L93 Difference]: Finished difference Result 11348 states and 30587 transitions. [2022-03-03 17:00:29,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:29,562 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:29,580 INFO L225 Difference]: With dead ends: 11348 [2022-03-03 17:00:29,580 INFO L226 Difference]: Without dead ends: 10854 [2022-03-03 17:00:29,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:29,581 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 203 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3077 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-03-03 17:00:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8998. [2022-03-03 17:00:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:29,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-03-03 17:00:29,735 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-03-03 17:00:29,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:29,736 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-03-03 17:00:29,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-03-03 17:00:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:29,748 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:29,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:29,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-03 17:00:29,748 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:29,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:29,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1506729378, now seen corresponding path program 73 times [2022-03-03 17:00:29,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:29,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195371437] [2022-03-03 17:00:29,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:29,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:29,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:29,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:29,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:29,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195371437] [2022-03-03 17:00:29,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195371437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:29,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:29,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:29,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339581602] [2022-03-03 17:00:29,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:29,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:29,860 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:29,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:29,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:29,860 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:30,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:30,517 INFO L93 Difference]: Finished difference Result 11491 states and 30936 transitions. [2022-03-03 17:00:30,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:00:30,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:30,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:30,536 INFO L225 Difference]: With dead ends: 11491 [2022-03-03 17:00:30,536 INFO L226 Difference]: Without dead ends: 10920 [2022-03-03 17:00:30,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 17:00:30,537 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 323 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:30,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 3451 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:30,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10920 states. [2022-03-03 17:00:30,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10920 to 9002. [2022-03-03 17:00:30,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-03 17:00:30,746 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-03 17:00:30,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:30,747 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-03 17:00:30,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:30,747 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-03 17:00:30,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:30,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:30,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:30,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-03 17:00:30,759 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:30,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:30,759 INFO L85 PathProgramCache]: Analyzing trace with hash -998675464, now seen corresponding path program 74 times [2022-03-03 17:00:30,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:30,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45395189] [2022-03-03 17:00:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:30,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:30,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:30,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:30,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45395189] [2022-03-03 17:00:30,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45395189] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:30,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:30,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:30,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366686937] [2022-03-03 17:00:30,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:30,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:30,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:30,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:30,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:30,869 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:31,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:31,453 INFO L93 Difference]: Finished difference Result 11478 states and 30915 transitions. [2022-03-03 17:00:31,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:31,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:31,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:31,471 INFO L225 Difference]: With dead ends: 11478 [2022-03-03 17:00:31,471 INFO L226 Difference]: Without dead ends: 10950 [2022-03-03 17:00:31,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:00:31,472 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 271 mSDsluCounter, 3134 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:31,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 3388 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-03-03 17:00:31,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 9006. [2022-03-03 17:00:31,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:31,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-03 17:00:31,622 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-03 17:00:31,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:31,623 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-03 17:00:31,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:31,623 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-03 17:00:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:31,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:31,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:31,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-03 17:00:31,635 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:31,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:31,635 INFO L85 PathProgramCache]: Analyzing trace with hash 788259490, now seen corresponding path program 75 times [2022-03-03 17:00:31,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:31,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486389713] [2022-03-03 17:00:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:31,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:31,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:31,747 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486389713] [2022-03-03 17:00:31,747 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486389713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:31,747 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:31,747 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:31,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59712335] [2022-03-03 17:00:31,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:31,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:31,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:31,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:31,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:31,748 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:32,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:32,250 INFO L93 Difference]: Finished difference Result 11314 states and 30485 transitions. [2022-03-03 17:00:32,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:32,250 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:32,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:32,268 INFO L225 Difference]: With dead ends: 11314 [2022-03-03 17:00:32,268 INFO L226 Difference]: Without dead ends: 10829 [2022-03-03 17:00:32,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:32,269 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 208 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:32,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3124 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:32,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10829 states. [2022-03-03 17:00:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10829 to 9010. [2022-03-03 17:00:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:32,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-03 17:00:32,421 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-03 17:00:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:32,421 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-03 17:00:32,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:32,421 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-03 17:00:32,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:32,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:32,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:32,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-03 17:00:32,434 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:32,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:32,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1469880144, now seen corresponding path program 76 times [2022-03-03 17:00:32,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:32,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277297762] [2022-03-03 17:00:32,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:32,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:32,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:32,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277297762] [2022-03-03 17:00:32,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277297762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:32,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:32,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:32,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466655460] [2022-03-03 17:00:32,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:32,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:32,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:32,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:32,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:32,548 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:33,025 INFO L93 Difference]: Finished difference Result 11248 states and 30308 transitions. [2022-03-03 17:00:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:00:33,025 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:33,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:33,044 INFO L225 Difference]: With dead ends: 11248 [2022-03-03 17:00:33,044 INFO L226 Difference]: Without dead ends: 10746 [2022-03-03 17:00:33,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:00:33,045 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 196 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:33,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 3091 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:33,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-03-03 17:00:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8990. [2022-03-03 17:00:33,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7011903437534763) internal successors, (24281), 8989 states have internal predecessors, (24281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24281 transitions. [2022-03-03 17:00:33,207 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24281 transitions. Word has length 109 [2022-03-03 17:00:33,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:33,207 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24281 transitions. [2022-03-03 17:00:33,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,207 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24281 transitions. [2022-03-03 17:00:33,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:33,219 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:33,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:33,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-03 17:00:33,220 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:33,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:33,220 INFO L85 PathProgramCache]: Analyzing trace with hash 457042722, now seen corresponding path program 77 times [2022-03-03 17:00:33,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:33,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040172956] [2022-03-03 17:00:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:33,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:33,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:33,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:33,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040172956] [2022-03-03 17:00:33,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040172956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:33,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:33,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:33,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54510004] [2022-03-03 17:00:33,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:33,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:33,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:33,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:33,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:33,332 INFO L87 Difference]: Start difference. First operand 8990 states and 24281 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:33,757 INFO L93 Difference]: Finished difference Result 11318 states and 30508 transitions. [2022-03-03 17:00:33,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:00:33,757 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:33,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:33,775 INFO L225 Difference]: With dead ends: 11318 [2022-03-03 17:00:33,775 INFO L226 Difference]: Without dead ends: 10833 [2022-03-03 17:00:33,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:00:33,775 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 213 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:33,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2398 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10833 states. [2022-03-03 17:00:33,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10833 to 9010. [2022-03-03 17:00:33,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-03 17:00:33,927 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-03 17:00:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:33,927 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-03 17:00:33,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-03 17:00:33,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:33,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:33,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:33,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-03 17:00:33,939 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:33,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:33,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1138663376, now seen corresponding path program 78 times [2022-03-03 17:00:33,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:33,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811017564] [2022-03-03 17:00:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:33,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:34,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:34,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811017564] [2022-03-03 17:00:34,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811017564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:34,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:34,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:34,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686408255] [2022-03-03 17:00:34,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:34,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:34,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:34,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:34,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:34,055 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:34,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:34,526 INFO L93 Difference]: Finished difference Result 11284 states and 30419 transitions. [2022-03-03 17:00:34,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:34,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:34,545 INFO L225 Difference]: With dead ends: 11284 [2022-03-03 17:00:34,545 INFO L226 Difference]: Without dead ends: 10798 [2022-03-03 17:00:34,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:34,546 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 198 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 3097 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:34,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 3097 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:34,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10798 states. [2022-03-03 17:00:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10798 to 9006. [2022-03-03 17:00:34,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:34,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-03 17:00:34,698 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-03 17:00:34,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:34,698 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-03 17:00:34,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-03 17:00:34,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:34,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:34,711 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:34,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-03 17:00:34,711 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:34,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:34,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1839350932, now seen corresponding path program 79 times [2022-03-03 17:00:34,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:34,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656339265] [2022-03-03 17:00:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:34,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:34,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:34,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656339265] [2022-03-03 17:00:34,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656339265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:34,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:34,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:34,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193980315] [2022-03-03 17:00:34,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:34,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:34,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:34,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:34,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:34,838 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:35,462 INFO L93 Difference]: Finished difference Result 11320 states and 30514 transitions. [2022-03-03 17:00:35,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:35,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:35,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:35,481 INFO L225 Difference]: With dead ends: 11320 [2022-03-03 17:00:35,481 INFO L226 Difference]: Without dead ends: 10794 [2022-03-03 17:00:35,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:00:35,482 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 250 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 3192 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:35,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 3192 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-03-03 17:00:35,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 9002. [2022-03-03 17:00:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-03 17:00:35,639 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-03 17:00:35,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:35,639 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-03 17:00:35,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:35,639 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-03 17:00:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:35,652 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:35,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:35,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-03 17:00:35,652 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:35,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:35,652 INFO L85 PathProgramCache]: Analyzing trace with hash -304725532, now seen corresponding path program 80 times [2022-03-03 17:00:35,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:35,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156582439] [2022-03-03 17:00:35,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:35,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:35,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:35,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156582439] [2022-03-03 17:00:35,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156582439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:35,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:35,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:35,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842893504] [2022-03-03 17:00:35,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:35,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:35,762 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:35,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:35,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:35,762 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:36,455 INFO L93 Difference]: Finished difference Result 11548 states and 31113 transitions. [2022-03-03 17:00:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:00:36,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:36,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:36,473 INFO L225 Difference]: With dead ends: 11548 [2022-03-03 17:00:36,473 INFO L226 Difference]: Without dead ends: 10982 [2022-03-03 17:00:36,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:00:36,474 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 320 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:36,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 3574 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10982 states. [2022-03-03 17:00:36,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10982 to 8998. [2022-03-03 17:00:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:36,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-03-03 17:00:36,692 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-03-03 17:00:36,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:36,693 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-03-03 17:00:36,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:36,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-03-03 17:00:36,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:36,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:36,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:36,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-03 17:00:36,704 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:36,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1487686952, now seen corresponding path program 81 times [2022-03-03 17:00:36,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:36,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277857067] [2022-03-03 17:00:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:36,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:36,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:36,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277857067] [2022-03-03 17:00:36,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277857067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:36,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:36,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:36,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544413146] [2022-03-03 17:00:36,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:36,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:36,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:36,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:36,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:36,824 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:37,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:37,292 INFO L93 Difference]: Finished difference Result 11294 states and 30438 transitions. [2022-03-03 17:00:37,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:37,293 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:37,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:37,312 INFO L225 Difference]: With dead ends: 11294 [2022-03-03 17:00:37,312 INFO L226 Difference]: Without dead ends: 10809 [2022-03-03 17:00:37,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:00:37,313 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 205 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:37,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2834 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:37,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-03-03 17:00:37,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9010. [2022-03-03 17:00:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-03 17:00:37,469 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-03 17:00:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:37,469 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-03 17:00:37,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-03 17:00:37,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:37,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:37,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:37,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-03 17:00:37,481 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:37,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2125659690, now seen corresponding path program 82 times [2022-03-03 17:00:37,481 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:37,481 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547756912] [2022-03-03 17:00:37,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:37,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:37,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:37,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547756912] [2022-03-03 17:00:37,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547756912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:37,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:37,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:37,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76541066] [2022-03-03 17:00:37,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:37,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:37,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:37,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:37,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:37,614 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:38,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:38,088 INFO L93 Difference]: Finished difference Result 11252 states and 30327 transitions. [2022-03-03 17:00:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:38,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:38,107 INFO L225 Difference]: With dead ends: 11252 [2022-03-03 17:00:38,107 INFO L226 Difference]: Without dead ends: 10766 [2022-03-03 17:00:38,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:38,108 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 197 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:38,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 3256 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:38,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2022-03-03 17:00:38,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 9006. [2022-03-03 17:00:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-03 17:00:38,271 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-03 17:00:38,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:38,271 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-03 17:00:38,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:38,272 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-03 17:00:38,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:38,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:38,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:38,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-03 17:00:38,284 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:38,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1424972134, now seen corresponding path program 83 times [2022-03-03 17:00:38,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:38,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276198935] [2022-03-03 17:00:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:38,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:38,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:38,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:38,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276198935] [2022-03-03 17:00:38,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276198935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:38,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:38,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:38,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755639543] [2022-03-03 17:00:38,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:38,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:38,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:38,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:38,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:38,401 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:38,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:38,988 INFO L93 Difference]: Finished difference Result 11420 states and 30769 transitions. [2022-03-03 17:00:38,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:38,989 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:38,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:39,006 INFO L225 Difference]: With dead ends: 11420 [2022-03-03 17:00:39,007 INFO L226 Difference]: Without dead ends: 10894 [2022-03-03 17:00:39,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:00:39,007 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 263 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3068 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:39,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3068 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:39,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10894 states. [2022-03-03 17:00:39,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10894 to 9002. [2022-03-03 17:00:39,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-03 17:00:39,159 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-03 17:00:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:39,159 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-03 17:00:39,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-03 17:00:39,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:39,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:39,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:39,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-03 17:00:39,171 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:39,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:39,172 INFO L85 PathProgramCache]: Analyzing trace with hash -347284106, now seen corresponding path program 84 times [2022-03-03 17:00:39,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:39,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563434433] [2022-03-03 17:00:39,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:39,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:39,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:39,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563434433] [2022-03-03 17:00:39,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563434433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:39,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:39,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:39,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133836104] [2022-03-03 17:00:39,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:39,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:39,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:39,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:39,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:39,291 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:39,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:39,841 INFO L93 Difference]: Finished difference Result 11338 states and 30530 transitions. [2022-03-03 17:00:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:00:39,863 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:39,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:39,881 INFO L225 Difference]: With dead ends: 11338 [2022-03-03 17:00:39,881 INFO L226 Difference]: Without dead ends: 10810 [2022-03-03 17:00:39,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:00:39,882 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 262 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:39,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3549 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:39,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-03-03 17:00:40,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 9006. [2022-03-03 17:00:40,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-03 17:00:40,044 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-03 17:00:40,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:40,044 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-03 17:00:40,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:40,045 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-03 17:00:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:40,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:40,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:40,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-03 17:00:40,058 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:40,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1439650848, now seen corresponding path program 85 times [2022-03-03 17:00:40,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:40,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174427527] [2022-03-03 17:00:40,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:40,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:40,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:40,175 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174427527] [2022-03-03 17:00:40,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174427527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:40,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:40,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:40,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295491407] [2022-03-03 17:00:40,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:40,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:40,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:40,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:40,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:40,176 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:40,674 INFO L93 Difference]: Finished difference Result 11238 states and 30276 transitions. [2022-03-03 17:00:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:40,674 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:40,692 INFO L225 Difference]: With dead ends: 11238 [2022-03-03 17:00:40,692 INFO L226 Difference]: Without dead ends: 10753 [2022-03-03 17:00:40,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:00:40,692 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 204 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:40,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3114 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:40,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10753 states. [2022-03-03 17:00:40,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10753 to 9010. [2022-03-03 17:00:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-03 17:00:40,844 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-03 17:00:40,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:40,844 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-03 17:00:40,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-03 17:00:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:40,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:40,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:40,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-03 17:00:40,856 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:40,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:40,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2121271502, now seen corresponding path program 86 times [2022-03-03 17:00:40,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:40,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656480912] [2022-03-03 17:00:40,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:40,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:40,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:40,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656480912] [2022-03-03 17:00:40,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656480912] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:40,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:40,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:40,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989615837] [2022-03-03 17:00:40,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:40,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:40,969 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:40,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:40,970 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:41,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:41,426 INFO L93 Difference]: Finished difference Result 11188 states and 30143 transitions. [2022-03-03 17:00:41,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:41,426 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:41,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:41,444 INFO L225 Difference]: With dead ends: 11188 [2022-03-03 17:00:41,444 INFO L226 Difference]: Without dead ends: 10690 [2022-03-03 17:00:41,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:41,445 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 192 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:41,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3104 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:41,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2022-03-03 17:00:41,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 8994. [2022-03-03 17:00:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:41,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-03-03 17:00:41,592 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-03-03 17:00:41,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:41,592 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-03-03 17:00:41,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-03-03 17:00:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:41,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:41,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:41,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-03 17:00:41,605 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:41,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:41,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1935686880, now seen corresponding path program 87 times [2022-03-03 17:00:41,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:41,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533265567] [2022-03-03 17:00:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:41,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:41,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533265567] [2022-03-03 17:00:41,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533265567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:41,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:41,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:41,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393623942] [2022-03-03 17:00:41,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:41,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:41,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:41,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:41,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:41,730 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:42,147 INFO L93 Difference]: Finished difference Result 11130 states and 29987 transitions. [2022-03-03 17:00:42,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:00:42,148 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:42,166 INFO L225 Difference]: With dead ends: 11130 [2022-03-03 17:00:42,166 INFO L226 Difference]: Without dead ends: 10645 [2022-03-03 17:00:42,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 17:00:42,166 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 201 mSDsluCounter, 2313 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:42,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 2574 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:42,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10645 states. [2022-03-03 17:00:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10645 to 9010. [2022-03-03 17:00:42,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-03 17:00:42,318 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-03 17:00:42,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:42,318 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-03 17:00:42,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-03 17:00:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:42,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:42,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:42,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-03 17:00:42,331 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:42,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:42,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1677659762, now seen corresponding path program 88 times [2022-03-03 17:00:42,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:42,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559500740] [2022-03-03 17:00:42,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:42,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:42,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:42,487 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:42,487 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559500740] [2022-03-03 17:00:42,487 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559500740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:42,487 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:42,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:42,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41114777] [2022-03-03 17:00:42,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:42,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:42,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:42,488 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:42,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:42,946 INFO L93 Difference]: Finished difference Result 11100 states and 29909 transitions. [2022-03-03 17:00:42,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:42,946 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:42,964 INFO L225 Difference]: With dead ends: 11100 [2022-03-03 17:00:42,964 INFO L226 Difference]: Without dead ends: 10614 [2022-03-03 17:00:42,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:42,965 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 192 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 3436 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:42,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 3436 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10614 states. [2022-03-03 17:00:43,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10614 to 9006. [2022-03-03 17:00:43,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-03 17:00:43,115 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-03 17:00:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:43,116 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-03 17:00:43,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-03 17:00:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:43,128 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:43,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:43,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-03 17:00:43,128 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:43,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash -976972206, now seen corresponding path program 89 times [2022-03-03 17:00:43,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:43,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643129378] [2022-03-03 17:00:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:43,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:43,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:43,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643129378] [2022-03-03 17:00:43,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643129378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:43,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:43,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:43,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698022207] [2022-03-03 17:00:43,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:43,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:43,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:43,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:43,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:43,249 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:43,835 INFO L93 Difference]: Finished difference Result 11136 states and 30004 transitions. [2022-03-03 17:00:43,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:43,835 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:43,853 INFO L225 Difference]: With dead ends: 11136 [2022-03-03 17:00:43,853 INFO L226 Difference]: Without dead ends: 10610 [2022-03-03 17:00:43,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:00:43,854 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 255 mSDsluCounter, 2322 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:43,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2601 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:43,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-03-03 17:00:43,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 9002. [2022-03-03 17:00:43,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-03 17:00:44,004 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-03 17:00:44,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:44,004 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-03 17:00:44,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:44,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-03 17:00:44,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:44,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:44,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:44,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-03 17:00:44,017 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:44,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:44,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1173918626, now seen corresponding path program 90 times [2022-03-03 17:00:44,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:44,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823689413] [2022-03-03 17:00:44,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:44,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:44,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:44,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823689413] [2022-03-03 17:00:44,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823689413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:44,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:44,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:44,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529142198] [2022-03-03 17:00:44,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:44,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:44,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:44,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:44,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:44,145 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:44,827 INFO L93 Difference]: Finished difference Result 11172 states and 30099 transitions. [2022-03-03 17:00:44,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:00:44,828 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:44,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:44,845 INFO L225 Difference]: With dead ends: 11172 [2022-03-03 17:00:44,845 INFO L226 Difference]: Without dead ends: 10606 [2022-03-03 17:00:44,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:00:44,846 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 293 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3608 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:44,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3608 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10606 states. [2022-03-03 17:00:44,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10606 to 8998. [2022-03-03 17:00:44,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-03-03 17:00:44,988 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-03-03 17:00:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:44,988 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-03-03 17:00:44,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-03-03 17:00:45,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:45,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:45,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:45,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-03 17:00:45,000 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:45,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2138109974, now seen corresponding path program 91 times [2022-03-03 17:00:45,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:45,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193680135] [2022-03-03 17:00:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:45,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:45,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:45,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193680135] [2022-03-03 17:00:45,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193680135] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:45,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:45,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:45,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090552980] [2022-03-03 17:00:45,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:45,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:45,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:45,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:45,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:45,104 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:45,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:45,794 INFO L93 Difference]: Finished difference Result 11284 states and 30371 transitions. [2022-03-03 17:00:45,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:00:45,794 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:45,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:45,812 INFO L225 Difference]: With dead ends: 11284 [2022-03-03 17:00:45,812 INFO L226 Difference]: Without dead ends: 10670 [2022-03-03 17:00:45,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 916 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:00:45,813 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 379 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:45,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [379 Valid, 3090 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:45,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-03-03 17:00:45,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8986. [2022-03-03 17:00:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8986 states, 8985 states have (on average 2.701168614357262) internal successors, (24270), 8985 states have internal predecessors, (24270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8986 states to 8986 states and 24270 transitions. [2022-03-03 17:00:45,968 INFO L78 Accepts]: Start accepts. Automaton has 8986 states and 24270 transitions. Word has length 109 [2022-03-03 17:00:45,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:45,968 INFO L470 AbstractCegarLoop]: Abstraction has 8986 states and 24270 transitions. [2022-03-03 17:00:45,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8986 states and 24270 transitions. [2022-03-03 17:00:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:45,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:45,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:45,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-03 17:00:45,981 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:45,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:45,982 INFO L85 PathProgramCache]: Analyzing trace with hash -831958788, now seen corresponding path program 92 times [2022-03-03 17:00:45,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:45,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033316181] [2022-03-03 17:00:45,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:45,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:46,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:46,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033316181] [2022-03-03 17:00:46,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033316181] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:46,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:46,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:46,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372513012] [2022-03-03 17:00:46,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:46,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:46,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:46,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:46,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:46,104 INFO L87 Difference]: Start difference. First operand 8986 states and 24270 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:46,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:46,581 INFO L93 Difference]: Finished difference Result 11086 states and 29870 transitions. [2022-03-03 17:00:46,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:00:46,582 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:46,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:46,600 INFO L225 Difference]: With dead ends: 11086 [2022-03-03 17:00:46,600 INFO L226 Difference]: Without dead ends: 10601 [2022-03-03 17:00:46,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:00:46,601 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 211 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:46,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 3266 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:46,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10601 states. [2022-03-03 17:00:46,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 9010. [2022-03-03 17:00:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.700854700854701) internal successors, (24332), 9009 states have internal predecessors, (24332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24332 transitions. [2022-03-03 17:00:46,754 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24332 transitions. Word has length 109 [2022-03-03 17:00:46,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:46,754 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24332 transitions. [2022-03-03 17:00:46,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:46,755 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24332 transitions. [2022-03-03 17:00:46,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:46,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:46,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:46,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-03 17:00:46,766 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:46,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:46,767 INFO L85 PathProgramCache]: Analyzing trace with hash -150338134, now seen corresponding path program 93 times [2022-03-03 17:00:46,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:46,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437346163] [2022-03-03 17:00:46,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:46,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:46,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:46,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437346163] [2022-03-03 17:00:46,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437346163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:46,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:46,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:46,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241986931] [2022-03-03 17:00:46,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:46,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:46,890 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:46,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:46,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:46,890 INFO L87 Difference]: Start difference. First operand 9010 states and 24332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:47,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:47,467 INFO L93 Difference]: Finished difference Result 11052 states and 29781 transitions. [2022-03-03 17:00:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:47,467 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:47,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:47,485 INFO L225 Difference]: With dead ends: 11052 [2022-03-03 17:00:47,485 INFO L226 Difference]: Without dead ends: 10566 [2022-03-03 17:00:47,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:47,486 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 199 mSDsluCounter, 3000 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:47,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 3262 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-03-03 17:00:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 9006. [2022-03-03 17:00:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.7008328706274294) internal successors, (24321), 9005 states have internal predecessors, (24321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24321 transitions. [2022-03-03 17:00:47,641 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24321 transitions. Word has length 109 [2022-03-03 17:00:47,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:47,641 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24321 transitions. [2022-03-03 17:00:47,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:47,641 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24321 transitions. [2022-03-03 17:00:47,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:47,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:47,653 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:47,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-03 17:00:47,654 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:47,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:47,654 INFO L85 PathProgramCache]: Analyzing trace with hash 550349422, now seen corresponding path program 94 times [2022-03-03 17:00:47,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:47,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632954698] [2022-03-03 17:00:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:47,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:47,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:47,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632954698] [2022-03-03 17:00:47,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632954698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:47,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:47,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:47,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879550791] [2022-03-03 17:00:47,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:47,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:47,783 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:47,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:47,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:47,783 INFO L87 Difference]: Start difference. First operand 9006 states and 24321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:48,471 INFO L93 Difference]: Finished difference Result 11088 states and 29876 transitions. [2022-03-03 17:00:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:00:48,472 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:48,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:48,490 INFO L225 Difference]: With dead ends: 11088 [2022-03-03 17:00:48,490 INFO L226 Difference]: Without dead ends: 10562 [2022-03-03 17:00:48,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:00:48,491 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 254 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:48,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 3352 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10562 states. [2022-03-03 17:00:48,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10562 to 9002. [2022-03-03 17:00:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700811020997667) internal successors, (24310), 9001 states have internal predecessors, (24310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24310 transitions. [2022-03-03 17:00:48,640 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24310 transitions. Word has length 109 [2022-03-03 17:00:48,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:48,641 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24310 transitions. [2022-03-03 17:00:48,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:48,641 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24310 transitions. [2022-03-03 17:00:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:48,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:48,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:48,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-03 17:00:48,654 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:48,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1593727042, now seen corresponding path program 95 times [2022-03-03 17:00:48,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:48,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143711486] [2022-03-03 17:00:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:48,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:48,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:48,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143711486] [2022-03-03 17:00:48,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143711486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:48,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:48,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:48,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769759733] [2022-03-03 17:00:48,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:48,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:48,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:48,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:48,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:48,805 INFO L87 Difference]: Start difference. First operand 9002 states and 24310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:49,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:49,481 INFO L93 Difference]: Finished difference Result 11176 states and 30090 transitions. [2022-03-03 17:00:49,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:00:49,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:49,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:49,497 INFO L225 Difference]: With dead ends: 11176 [2022-03-03 17:00:49,498 INFO L226 Difference]: Without dead ends: 10610 [2022-03-03 17:00:49,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:00:49,498 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 322 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 3542 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:49,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 3542 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:49,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2022-03-03 17:00:49,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 8998. [2022-03-03 17:00:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7007891519395355) internal successors, (24299), 8997 states have internal predecessors, (24299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:49,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24299 transitions. [2022-03-03 17:00:49,637 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24299 transitions. Word has length 109 [2022-03-03 17:00:49,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:49,637 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24299 transitions. [2022-03-03 17:00:49,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:49,638 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24299 transitions. [2022-03-03 17:00:49,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:49,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:49,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:49,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-03 17:00:49,649 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:49,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:49,653 INFO L85 PathProgramCache]: Analyzing trace with hash 198685442, now seen corresponding path program 96 times [2022-03-03 17:00:49,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:49,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641305648] [2022-03-03 17:00:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:49,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:49,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:49,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:49,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641305648] [2022-03-03 17:00:49,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641305648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:49,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:49,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:49,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264981293] [2022-03-03 17:00:49,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:49,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:49,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:49,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:49,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:49,779 INFO L87 Difference]: Start difference. First operand 8998 states and 24299 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:50,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:50,255 INFO L93 Difference]: Finished difference Result 11150 states and 30042 transitions. [2022-03-03 17:00:50,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:50,256 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:50,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:50,273 INFO L225 Difference]: With dead ends: 11150 [2022-03-03 17:00:50,274 INFO L226 Difference]: Without dead ends: 10665 [2022-03-03 17:00:50,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:00:50,274 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 236 mSDsluCounter, 2734 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:50,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2988 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:50,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10665 states. [2022-03-03 17:00:50,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10665 to 9010. [2022-03-03 17:00:50,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-03 17:00:50,424 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-03 17:00:50,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:50,424 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-03 17:00:50,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:50,424 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-03 17:00:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:50,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:50,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:50,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-03 17:00:50,437 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:50,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash 880306096, now seen corresponding path program 97 times [2022-03-03 17:00:50,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:50,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102613093] [2022-03-03 17:00:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:50,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:50,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102613093] [2022-03-03 17:00:50,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102613093] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:50,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:50,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:50,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991694609] [2022-03-03 17:00:50,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:50,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:50,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:50,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:50,550 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:51,044 INFO L93 Difference]: Finished difference Result 11108 states and 29931 transitions. [2022-03-03 17:00:51,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:51,044 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:51,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:51,062 INFO L225 Difference]: With dead ends: 11108 [2022-03-03 17:00:51,062 INFO L226 Difference]: Without dead ends: 10622 [2022-03-03 17:00:51,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:51,063 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 221 mSDsluCounter, 3149 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:51,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3405 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:51,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10622 states. [2022-03-03 17:00:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10622 to 9006. [2022-03-03 17:00:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:51,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-03 17:00:51,218 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-03 17:00:51,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:51,218 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-03 17:00:51,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:51,219 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-03 17:00:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:51,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:51,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:51,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-03 17:00:51,233 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:51,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1580993652, now seen corresponding path program 98 times [2022-03-03 17:00:51,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:51,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915165645] [2022-03-03 17:00:51,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:51,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:51,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:51,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:51,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915165645] [2022-03-03 17:00:51,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915165645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:51,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:51,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:51,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348848894] [2022-03-03 17:00:51,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:51,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:51,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:51,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:51,432 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:52,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:52,032 INFO L93 Difference]: Finished difference Result 11236 states and 30263 transitions. [2022-03-03 17:00:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:52,032 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:52,050 INFO L225 Difference]: With dead ends: 11236 [2022-03-03 17:00:52,050 INFO L226 Difference]: Without dead ends: 10710 [2022-03-03 17:00:52,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:00:52,051 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 294 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 2757 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:52,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 2757 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:52,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-03-03 17:00:52,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9002. [2022-03-03 17:00:52,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-03 17:00:52,207 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-03 17:00:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:52,207 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-03 17:00:52,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:52,207 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-03 17:00:52,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:52,219 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:52,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:52,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-03 17:00:52,220 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:52,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:52,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1636285616, now seen corresponding path program 99 times [2022-03-03 17:00:52,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:52,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079007890] [2022-03-03 17:00:52,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:52,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:52,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:52,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:52,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079007890] [2022-03-03 17:00:52,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079007890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:52,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:52,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:52,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726099799] [2022-03-03 17:00:52,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:52,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:52,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:52,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:52,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:52,332 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:52,889 INFO L93 Difference]: Finished difference Result 11238 states and 30255 transitions. [2022-03-03 17:00:52,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:00:52,889 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:52,907 INFO L225 Difference]: With dead ends: 11238 [2022-03-03 17:00:52,908 INFO L226 Difference]: Without dead ends: 10710 [2022-03-03 17:00:52,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1451, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:00:52,908 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 285 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:52,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 3531 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:52,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-03-03 17:00:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 9006. [2022-03-03 17:00:53,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-03 17:00:53,065 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-03 17:00:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:53,066 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-03 17:00:53,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-03 17:00:53,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:53,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:53,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:53,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-03 17:00:53,078 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:53,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:53,079 INFO L85 PathProgramCache]: Analyzing trace with hash 150649338, now seen corresponding path program 100 times [2022-03-03 17:00:53,079 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:53,079 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790667587] [2022-03-03 17:00:53,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:53,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:53,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:53,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790667587] [2022-03-03 17:00:53,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790667587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:53,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:53,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:53,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621191984] [2022-03-03 17:00:53,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:53,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:53,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:53,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:53,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:53,198 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:53,675 INFO L93 Difference]: Finished difference Result 11090 states and 29869 transitions. [2022-03-03 17:00:53,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:53,675 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:53,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:53,693 INFO L225 Difference]: With dead ends: 11090 [2022-03-03 17:00:53,693 INFO L226 Difference]: Without dead ends: 10605 [2022-03-03 17:00:53,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:00:53,693 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 222 mSDsluCounter, 2739 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:53,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2996 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:53,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10605 states. [2022-03-03 17:00:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10605 to 9010. [2022-03-03 17:00:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-03 17:00:53,846 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-03 17:00:53,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:53,846 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-03 17:00:53,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-03 17:00:53,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:53,858 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:53,859 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:53,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-03 17:00:53,859 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:53,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:53,859 INFO L85 PathProgramCache]: Analyzing trace with hash 832269992, now seen corresponding path program 101 times [2022-03-03 17:00:53,859 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:53,859 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249759213] [2022-03-03 17:00:53,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:53,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:53,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:53,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249759213] [2022-03-03 17:00:53,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249759213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:53,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:53,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:53,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031659640] [2022-03-03 17:00:53,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:53,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:53,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:53,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:53,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:53,975 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:54,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:54,456 INFO L93 Difference]: Finished difference Result 11008 states and 29648 transitions. [2022-03-03 17:00:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:54,456 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:54,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:54,474 INFO L225 Difference]: With dead ends: 11008 [2022-03-03 17:00:54,474 INFO L226 Difference]: Without dead ends: 10510 [2022-03-03 17:00:54,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:54,475 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 201 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3215 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:54,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3215 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:54,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10510 states. [2022-03-03 17:00:54,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10510 to 8994. [2022-03-03 17:00:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.70076726342711) internal successors, (24288), 8993 states have internal predecessors, (24288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:54,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24288 transitions. [2022-03-03 17:00:54,627 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24288 transitions. Word has length 109 [2022-03-03 17:00:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:54,627 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24288 transitions. [2022-03-03 17:00:54,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24288 transitions. [2022-03-03 17:00:54,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:54,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:54,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:54,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-03 17:00:54,640 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:54,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1280629754, now seen corresponding path program 102 times [2022-03-03 17:00:54,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:54,640 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935986287] [2022-03-03 17:00:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:54,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:54,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:54,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:54,758 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:54,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935986287] [2022-03-03 17:00:54,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935986287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:54,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:54,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:54,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432550367] [2022-03-03 17:00:54,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:54,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:54,759 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:54,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:54,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:54,759 INFO L87 Difference]: Start difference. First operand 8994 states and 24288 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:55,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:55,264 INFO L93 Difference]: Finished difference Result 11186 states and 30141 transitions. [2022-03-03 17:00:55,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:55,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:55,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:55,281 INFO L225 Difference]: With dead ends: 11186 [2022-03-03 17:00:55,281 INFO L226 Difference]: Without dead ends: 10701 [2022-03-03 17:00:55,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:00:55,281 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 237 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:55,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 3157 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-03-03 17:00:55,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-03-03 17:00:55,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:55,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-03 17:00:55,430 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-03 17:00:55,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:55,430 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-03 17:00:55,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-03 17:00:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:55,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:55,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:55,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-03 17:00:55,443 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:55,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:55,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1962250408, now seen corresponding path program 103 times [2022-03-03 17:00:55,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:55,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074295485] [2022-03-03 17:00:55,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:55,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:55,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:55,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:55,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074295485] [2022-03-03 17:00:55,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074295485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:55,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:55,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:55,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964804120] [2022-03-03 17:00:55,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:55,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:55,554 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:55,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:55,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:55,554 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:56,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:56,026 INFO L93 Difference]: Finished difference Result 11144 states and 30030 transitions. [2022-03-03 17:00:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:56,027 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:56,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:56,043 INFO L225 Difference]: With dead ends: 11144 [2022-03-03 17:00:56,044 INFO L226 Difference]: Without dead ends: 10658 [2022-03-03 17:00:56,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:00:56,044 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 221 mSDsluCounter, 3135 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3389 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:56,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3389 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:56,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2022-03-03 17:00:56,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 9006. [2022-03-03 17:00:56,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:56,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-03 17:00:56,184 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-03 17:00:56,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:56,184 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-03 17:00:56,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:56,184 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-03 17:00:56,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:56,198 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:56,198 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:56,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-03 17:00:56,198 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:56,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1632029332, now seen corresponding path program 104 times [2022-03-03 17:00:56,199 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:56,199 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950747808] [2022-03-03 17:00:56,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:56,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:56,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:56,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950747808] [2022-03-03 17:00:56,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950747808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:56,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:56,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:56,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172336664] [2022-03-03 17:00:56,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:56,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:56,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:56,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:56,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:56,319 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:56,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:56,907 INFO L93 Difference]: Finished difference Result 11252 states and 30307 transitions. [2022-03-03 17:00:56,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:00:56,908 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:56,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:56,927 INFO L225 Difference]: With dead ends: 11252 [2022-03-03 17:00:56,927 INFO L226 Difference]: Without dead ends: 10726 [2022-03-03 17:00:56,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:00:56,928 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 291 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:56,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3265 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:56,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-03-03 17:00:57,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9002. [2022-03-03 17:00:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:57,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-03 17:00:57,083 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-03 17:00:57,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:57,084 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-03 17:00:57,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:57,084 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-03 17:00:57,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:57,096 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:57,096 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:57,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-03 17:00:57,096 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:57,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:57,097 INFO L85 PathProgramCache]: Analyzing trace with hash -554341304, now seen corresponding path program 105 times [2022-03-03 17:00:57,097 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:57,097 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225596598] [2022-03-03 17:00:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:57,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:57,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:57,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:57,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225596598] [2022-03-03 17:00:57,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225596598] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:57,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:57,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:57,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193500864] [2022-03-03 17:00:57,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:57,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:57,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:57,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:57,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:57,210 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:57,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:57,775 INFO L93 Difference]: Finished difference Result 11350 states and 30563 transitions. [2022-03-03 17:00:57,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:00:57,775 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:57,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:57,792 INFO L225 Difference]: With dead ends: 11350 [2022-03-03 17:00:57,793 INFO L226 Difference]: Without dead ends: 10822 [2022-03-03 17:00:57,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:00:57,793 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 294 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:57,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 3353 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:57,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10822 states. [2022-03-03 17:00:57,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10822 to 9006. [2022-03-03 17:00:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-03 17:00:57,951 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-03 17:00:57,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:57,951 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-03 17:00:57,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-03 17:00:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:57,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:57,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:57,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-03 17:00:57,964 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:57,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:57,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1232593650, now seen corresponding path program 106 times [2022-03-03 17:00:57,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:57,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882423782] [2022-03-03 17:00:57,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:57,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:58,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:58,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882423782] [2022-03-03 17:00:58,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882423782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:58,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:58,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:58,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834654273] [2022-03-03 17:00:58,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:58,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:58,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:58,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:58,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:58,080 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:58,562 INFO L93 Difference]: Finished difference Result 11186 states and 30133 transitions. [2022-03-03 17:00:58,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:00:58,562 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:58,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:58,582 INFO L225 Difference]: With dead ends: 11186 [2022-03-03 17:00:58,582 INFO L226 Difference]: Without dead ends: 10701 [2022-03-03 17:00:58,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:00:58,583 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 228 mSDsluCounter, 3008 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:58,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 3260 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:00:58,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-03-03 17:00:58,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 9010. [2022-03-03 17:00:58,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-03 17:00:58,747 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-03 17:00:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:58,747 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-03 17:00:58,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-03 17:00:58,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:58,759 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:58,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:58,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-03 17:00:58,760 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:58,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:58,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1914214304, now seen corresponding path program 107 times [2022-03-03 17:00:58,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:58,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193656884] [2022-03-03 17:00:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:58,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:58,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:58,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:58,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193656884] [2022-03-03 17:00:58,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193656884] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:58,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:58,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:58,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177443951] [2022-03-03 17:00:58,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:58,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:58,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:58,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:58,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:58,873 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:00:59,352 INFO L93 Difference]: Finished difference Result 11120 states and 29956 transitions. [2022-03-03 17:00:59,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:00:59,353 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:00:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:00:59,369 INFO L225 Difference]: With dead ends: 11120 [2022-03-03 17:00:59,370 INFO L226 Difference]: Without dead ends: 10626 [2022-03-03 17:00:59,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:00:59,370 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 212 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:00:59,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3211 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:00:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2022-03-03 17:00:59,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 8998. [2022-03-03 17:00:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-03-03 17:00:59,518 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-03-03 17:00:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:00:59,518 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-03-03 17:00:59,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:00:59,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-03-03 17:00:59,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:00:59,530 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:00:59,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:00:59,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-03 17:00:59,530 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:00:59,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:00:59,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2057819140, now seen corresponding path program 108 times [2022-03-03 17:00:59,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:00:59,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541772150] [2022-03-03 17:00:59,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:00:59,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:00:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:00:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:00:59,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:00:59,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541772150] [2022-03-03 17:00:59,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541772150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:00:59,643 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:00:59,643 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:00:59,643 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070618087] [2022-03-03 17:00:59,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:00:59,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:00:59,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:00:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:00:59,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:00:59,644 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:00,289 INFO L93 Difference]: Finished difference Result 11371 states and 30602 transitions. [2022-03-03 17:01:00,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:01:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:00,307 INFO L225 Difference]: With dead ends: 11371 [2022-03-03 17:01:00,308 INFO L226 Difference]: Without dead ends: 10800 [2022-03-03 17:01:00,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:01:00,308 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 353 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:00,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 3423 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:00,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10800 states. [2022-03-03 17:01:00,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10800 to 9002. [2022-03-03 17:01:00,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-03-03 17:01:00,460 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-03-03 17:01:00,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:00,460 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-03-03 17:01:00,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-03-03 17:01:00,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:00,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:00,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:00,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-03 17:01:00,472 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:00,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash -268256686, now seen corresponding path program 109 times [2022-03-03 17:01:00,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:00,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61047343] [2022-03-03 17:01:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:00,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:00,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:00,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61047343] [2022-03-03 17:01:00,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61047343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:00,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:00,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:00,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280836330] [2022-03-03 17:01:00,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:00,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:00,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:00,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:00,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:00,593 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:01,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:01,229 INFO L93 Difference]: Finished difference Result 11254 states and 30295 transitions. [2022-03-03 17:01:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:01,229 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:01,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:01,245 INFO L225 Difference]: With dead ends: 11254 [2022-03-03 17:01:01,245 INFO L226 Difference]: Without dead ends: 10726 [2022-03-03 17:01:01,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:01:01,245 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 290 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:01,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3534 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:01,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10726 states. [2022-03-03 17:01:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10726 to 9006. [2022-03-03 17:01:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:01,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-03-03 17:01:01,383 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-03-03 17:01:01,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:01,383 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-03-03 17:01:01,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:01,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-03-03 17:01:01,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:01,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:01,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:01,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-03 17:01:01,395 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1518678268, now seen corresponding path program 110 times [2022-03-03 17:01:01,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:01,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804122862] [2022-03-03 17:01:01,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:01,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:01,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:01,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:01,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804122862] [2022-03-03 17:01:01,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804122862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:01,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:01,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:01,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322486592] [2022-03-03 17:01:01,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:01,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:01,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:01,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:01,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:01,509 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:01,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:01,987 INFO L93 Difference]: Finished difference Result 11106 states and 29909 transitions. [2022-03-03 17:01:01,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:01,987 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:02,005 INFO L225 Difference]: With dead ends: 11106 [2022-03-03 17:01:02,005 INFO L226 Difference]: Without dead ends: 10621 [2022-03-03 17:01:02,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:02,006 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 227 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:02,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2897 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:02,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2022-03-03 17:01:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 9010. [2022-03-03 17:01:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-03-03 17:01:02,161 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-03-03 17:01:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:02,161 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-03-03 17:01:02,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:02,162 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-03-03 17:01:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:02,174 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:02,174 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:02,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-03 17:01:02,174 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -2094668374, now seen corresponding path program 111 times [2022-03-03 17:01:02,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:02,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595375865] [2022-03-03 17:01:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:02,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:02,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595375865] [2022-03-03 17:01:02,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595375865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:02,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:02,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:02,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794110745] [2022-03-03 17:01:02,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:02,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:02,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:02,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:02,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:02,291 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:02,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:02,777 INFO L93 Difference]: Finished difference Result 11008 states and 29644 transitions. [2022-03-03 17:01:02,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:01:02,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:02,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:02,795 INFO L225 Difference]: With dead ends: 11008 [2022-03-03 17:01:02,795 INFO L226 Difference]: Without dead ends: 10506 [2022-03-03 17:01:02,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:02,795 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 203 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:02,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3353 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10506 states. [2022-03-03 17:01:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10506 to 8990. [2022-03-03 17:01:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8990 states, 8989 states have (on average 2.7007453554344196) internal successors, (24277), 8989 states have internal predecessors, (24277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:02,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8990 states to 8990 states and 24277 transitions. [2022-03-03 17:01:02,948 INFO L78 Accepts]: Start accepts. Automaton has 8990 states and 24277 transitions. Word has length 109 [2022-03-03 17:01:02,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:02,948 INFO L470 AbstractCegarLoop]: Abstraction has 8990 states and 24277 transitions. [2022-03-03 17:01:02,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:02,948 INFO L276 IsEmpty]: Start isEmpty. Operand 8990 states and 24277 transitions. [2022-03-03 17:01:02,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:02,960 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:02,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:02,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-03 17:01:02,960 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:02,961 INFO L85 PathProgramCache]: Analyzing trace with hash 287389928, now seen corresponding path program 112 times [2022-03-03 17:01:02,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:02,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095391215] [2022-03-03 17:01:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:02,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:03,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:03,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095391215] [2022-03-03 17:01:03,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095391215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:03,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:03,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:03,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091930402] [2022-03-03 17:01:03,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:03,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:03,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:03,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:03,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:03,079 INFO L87 Difference]: Start difference. First operand 8990 states and 24277 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:03,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:03,530 INFO L93 Difference]: Finished difference Result 11042 states and 29745 transitions. [2022-03-03 17:01:03,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:03,530 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:03,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:03,549 INFO L225 Difference]: With dead ends: 11042 [2022-03-03 17:01:03,550 INFO L226 Difference]: Without dead ends: 10557 [2022-03-03 17:01:03,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:03,550 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 245 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:03,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 3206 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:03,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-03-03 17:01:03,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-03-03 17:01:03,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.7004107004107003) internal successors, (24328), 9009 states have internal predecessors, (24328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24328 transitions. [2022-03-03 17:01:03,711 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24328 transitions. Word has length 109 [2022-03-03 17:01:03,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:03,711 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24328 transitions. [2022-03-03 17:01:03,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:03,711 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24328 transitions. [2022-03-03 17:01:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:03,724 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:03,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:03,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-03 17:01:03,725 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:03,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash 969010582, now seen corresponding path program 113 times [2022-03-03 17:01:03,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:03,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361495124] [2022-03-03 17:01:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:03,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:03,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:03,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:03,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361495124] [2022-03-03 17:01:03,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361495124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:03,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:03,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:03,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747507184] [2022-03-03 17:01:03,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:03,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:03,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:03,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:03,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:03,838 INFO L87 Difference]: Start difference. First operand 9010 states and 24328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:04,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:04,311 INFO L93 Difference]: Finished difference Result 11000 states and 29634 transitions. [2022-03-03 17:01:04,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:04,313 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:04,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:04,330 INFO L225 Difference]: With dead ends: 11000 [2022-03-03 17:01:04,337 INFO L226 Difference]: Without dead ends: 10514 [2022-03-03 17:01:04,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:01:04,338 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 224 mSDsluCounter, 2940 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:04,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 3195 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:04,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10514 states. [2022-03-03 17:01:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10514 to 9006. [2022-03-03 17:01:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.700388672959467) internal successors, (24317), 9005 states have internal predecessors, (24317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24317 transitions. [2022-03-03 17:01:04,495 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24317 transitions. Word has length 109 [2022-03-03 17:01:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:04,495 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24317 transitions. [2022-03-03 17:01:04,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24317 transitions. [2022-03-03 17:01:04,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:04,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:04,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:04,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-03 17:01:04,507 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:04,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:04,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1669698138, now seen corresponding path program 114 times [2022-03-03 17:01:04,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:04,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047397114] [2022-03-03 17:01:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:04,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:04,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:04,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047397114] [2022-03-03 17:01:04,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047397114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:04,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:04,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:04,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758300395] [2022-03-03 17:01:04,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:04,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:04,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:04,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:04,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:04,635 INFO L87 Difference]: Start difference. First operand 9006 states and 24317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:05,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:05,216 INFO L93 Difference]: Finished difference Result 11068 states and 29801 transitions. [2022-03-03 17:01:05,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:01:05,216 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:05,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:05,233 INFO L225 Difference]: With dead ends: 11068 [2022-03-03 17:01:05,233 INFO L226 Difference]: Without dead ends: 10542 [2022-03-03 17:01:05,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:01:05,234 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 293 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:05,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2717 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:05,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10542 states. [2022-03-03 17:01:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10542 to 9002. [2022-03-03 17:01:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.700366625930452) internal successors, (24306), 9001 states have internal predecessors, (24306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:05,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24306 transitions. [2022-03-03 17:01:05,382 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24306 transitions. Word has length 109 [2022-03-03 17:01:05,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:05,382 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24306 transitions. [2022-03-03 17:01:05,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:05,382 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24306 transitions. [2022-03-03 17:01:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:05,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:05,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:05,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-03 17:01:05,395 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:05,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:05,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1547581130, now seen corresponding path program 115 times [2022-03-03 17:01:05,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:05,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850333713] [2022-03-03 17:01:05,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:05,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:05,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:05,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:05,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:05,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850333713] [2022-03-03 17:01:05,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850333713] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:05,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:05,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:05,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735897126] [2022-03-03 17:01:05,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:05,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:05,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:05,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:05,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:05,537 INFO L87 Difference]: Start difference. First operand 9002 states and 24306 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:06,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:06,122 INFO L93 Difference]: Finished difference Result 11198 states and 30145 transitions. [2022-03-03 17:01:06,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:06,122 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:06,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:06,140 INFO L225 Difference]: With dead ends: 11198 [2022-03-03 17:01:06,140 INFO L226 Difference]: Without dead ends: 10670 [2022-03-03 17:01:06,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:01:06,141 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 343 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:06,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2952 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:06,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2022-03-03 17:01:06,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 9006. [2022-03-03 17:01:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6999444752915047) internal successors, (24313), 9005 states have internal predecessors, (24313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:06,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24313 transitions. [2022-03-03 17:01:06,294 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24313 transitions. Word has length 109 [2022-03-03 17:01:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:06,294 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24313 transitions. [2022-03-03 17:01:06,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24313 transitions. [2022-03-03 17:01:06,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:06,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:06,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:06,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-03 17:01:06,307 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:06,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:06,307 INFO L85 PathProgramCache]: Analyzing trace with hash 239353824, now seen corresponding path program 116 times [2022-03-03 17:01:06,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:06,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852913415] [2022-03-03 17:01:06,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:06,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:06,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:06,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:06,423 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852913415] [2022-03-03 17:01:06,423 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852913415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:06,423 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:06,423 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:06,423 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390759947] [2022-03-03 17:01:06,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:06,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:06,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:06,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:06,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:06,424 INFO L87 Difference]: Start difference. First operand 9006 states and 24313 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:06,893 INFO L93 Difference]: Finished difference Result 11034 states and 29715 transitions. [2022-03-03 17:01:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:06,894 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:06,911 INFO L225 Difference]: With dead ends: 11034 [2022-03-03 17:01:06,911 INFO L226 Difference]: Without dead ends: 10549 [2022-03-03 17:01:06,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:06,911 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 268 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:06,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3120 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:06,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2022-03-03 17:01:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 9010. [2022-03-03 17:01:07,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6995226995226997) internal successors, (24320), 9009 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:07,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24320 transitions. [2022-03-03 17:01:07,105 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24320 transitions. Word has length 109 [2022-03-03 17:01:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:07,106 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24320 transitions. [2022-03-03 17:01:07,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24320 transitions. [2022-03-03 17:01:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:07,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:07,118 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:07,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-03 17:01:07,118 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:07,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:07,118 INFO L85 PathProgramCache]: Analyzing trace with hash 920974478, now seen corresponding path program 117 times [2022-03-03 17:01:07,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:07,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207347875] [2022-03-03 17:01:07,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:07,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:07,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:07,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:07,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207347875] [2022-03-03 17:01:07,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207347875] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:07,223 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:07,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:07,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307813444] [2022-03-03 17:01:07,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:07,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:07,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:07,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:07,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:07,224 INFO L87 Difference]: Start difference. First operand 9010 states and 24320 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:07,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:07,668 INFO L93 Difference]: Finished difference Result 10968 states and 29538 transitions. [2022-03-03 17:01:07,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:07,668 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:07,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:07,685 INFO L225 Difference]: With dead ends: 10968 [2022-03-03 17:01:07,686 INFO L226 Difference]: Without dead ends: 10474 [2022-03-03 17:01:07,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:07,686 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 253 mSDsluCounter, 3061 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:07,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3303 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10474 states. [2022-03-03 17:01:07,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10474 to 8998. [2022-03-03 17:01:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.7003445592975437) internal successors, (24295), 8997 states have internal predecessors, (24295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:07,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24295 transitions. [2022-03-03 17:01:07,839 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24295 transitions. Word has length 109 [2022-03-03 17:01:07,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:07,839 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24295 transitions. [2022-03-03 17:01:07,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:07,840 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24295 transitions. [2022-03-03 17:01:07,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:07,852 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:07,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:07,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-03 17:01:07,852 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:07,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:07,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1243908330, now seen corresponding path program 118 times [2022-03-03 17:01:07,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:07,853 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344565142] [2022-03-03 17:01:07,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:07,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:07,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:07,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344565142] [2022-03-03 17:01:07,973 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344565142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:07,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:07,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:07,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2864776] [2022-03-03 17:01:07,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:07,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:07,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:07,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:07,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:07,974 INFO L87 Difference]: Start difference. First operand 8998 states and 24295 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:08,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:08,636 INFO L93 Difference]: Finished difference Result 11331 states and 30492 transitions. [2022-03-03 17:01:08,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:01:08,636 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:08,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:08,654 INFO L225 Difference]: With dead ends: 11331 [2022-03-03 17:01:08,654 INFO L226 Difference]: Without dead ends: 10760 [2022-03-03 17:01:08,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:01:08,654 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 415 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:08,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [415 Valid, 3370 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:08,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2022-03-03 17:01:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 9002. [2022-03-03 17:01:08,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6999222308632373) internal successors, (24302), 9001 states have internal predecessors, (24302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24302 transitions. [2022-03-03 17:01:08,802 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24302 transitions. Word has length 109 [2022-03-03 17:01:08,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:08,802 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24302 transitions. [2022-03-03 17:01:08,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:08,802 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24302 transitions. [2022-03-03 17:01:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:08,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:08,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:08,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-03 17:01:08,814 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:08,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:08,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1261496512, now seen corresponding path program 119 times [2022-03-03 17:01:08,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:08,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676544571] [2022-03-03 17:01:08,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:08,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:08,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:08,924 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:08,924 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676544571] [2022-03-03 17:01:08,924 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676544571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:08,924 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:08,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:08,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749603823] [2022-03-03 17:01:08,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:08,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:08,925 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:08,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:08,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:08,925 INFO L87 Difference]: Start difference. First operand 9002 states and 24302 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:09,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:09,507 INFO L93 Difference]: Finished difference Result 11206 states and 30163 transitions. [2022-03-03 17:01:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:09,508 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:09,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:09,525 INFO L225 Difference]: With dead ends: 11206 [2022-03-03 17:01:09,525 INFO L226 Difference]: Without dead ends: 10678 [2022-03-03 17:01:09,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:01:09,526 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 344 mSDsluCounter, 3241 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:09,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3478 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:09,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2022-03-03 17:01:09,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 9006. [2022-03-03 17:01:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.6995002776235424) internal successors, (24309), 9005 states have internal predecessors, (24309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:09,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24309 transitions. [2022-03-03 17:01:09,671 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24309 transitions. Word has length 109 [2022-03-03 17:01:09,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:09,671 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24309 transitions. [2022-03-03 17:01:09,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:09,671 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24309 transitions. [2022-03-03 17:01:09,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:09,683 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:09,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:09,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-03 17:01:09,683 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:09,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash 525438442, now seen corresponding path program 120 times [2022-03-03 17:01:09,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:09,684 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697095596] [2022-03-03 17:01:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:09,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:09,808 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:09,808 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697095596] [2022-03-03 17:01:09,809 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697095596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:09,809 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:09,809 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:09,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349303206] [2022-03-03 17:01:09,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:09,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:09,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:09,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:09,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:09,812 INFO L87 Difference]: Start difference. First operand 9006 states and 24309 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:10,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:10,277 INFO L93 Difference]: Finished difference Result 11042 states and 29733 transitions. [2022-03-03 17:01:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:10,278 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:10,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:10,298 INFO L225 Difference]: With dead ends: 11042 [2022-03-03 17:01:10,298 INFO L226 Difference]: Without dead ends: 10557 [2022-03-03 17:01:10,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:10,299 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 269 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:10,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 3182 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:10,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2022-03-03 17:01:10,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 9010. [2022-03-03 17:01:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.699078699078699) internal successors, (24316), 9009 states have internal predecessors, (24316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:10,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24316 transitions. [2022-03-03 17:01:10,453 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24316 transitions. Word has length 109 [2022-03-03 17:01:10,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:10,454 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24316 transitions. [2022-03-03 17:01:10,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:10,454 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24316 transitions. [2022-03-03 17:01:10,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:10,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:10,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:10,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-03 17:01:10,466 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:10,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:10,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1207059096, now seen corresponding path program 121 times [2022-03-03 17:01:10,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:10,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268758269] [2022-03-03 17:01:10,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:10,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:10,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:10,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268758269] [2022-03-03 17:01:10,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268758269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:10,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:10,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:10,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462028722] [2022-03-03 17:01:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:10,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:10,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:10,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:10,581 INFO L87 Difference]: Start difference. First operand 9010 states and 24316 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:11,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:11,018 INFO L93 Difference]: Finished difference Result 10968 states and 29534 transitions. [2022-03-03 17:01:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:01:11,018 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:11,036 INFO L225 Difference]: With dead ends: 10968 [2022-03-03 17:01:11,037 INFO L226 Difference]: Without dead ends: 10470 [2022-03-03 17:01:11,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:11,037 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 253 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:11,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 3287 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:11,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-03-03 17:01:11,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 8994. [2022-03-03 17:01:11,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8994 states, 8993 states have (on average 2.7003224730345825) internal successors, (24284), 8993 states have internal predecessors, (24284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:11,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8994 states to 8994 states and 24284 transitions. [2022-03-03 17:01:11,194 INFO L78 Accepts]: Start accepts. Automaton has 8994 states and 24284 transitions. Word has length 109 [2022-03-03 17:01:11,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:11,194 INFO L470 AbstractCegarLoop]: Abstraction has 8994 states and 24284 transitions. [2022-03-03 17:01:11,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:11,194 INFO L276 IsEmpty]: Start isEmpty. Operand 8994 states and 24284 transitions. [2022-03-03 17:01:11,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:11,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:11,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:11,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-03 17:01:11,207 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:11,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1881550740, now seen corresponding path program 122 times [2022-03-03 17:01:11,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:11,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401299061] [2022-03-03 17:01:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:11,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:11,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401299061] [2022-03-03 17:01:11,328 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401299061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:11,328 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:11,328 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:11,328 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128063493] [2022-03-03 17:01:11,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:11,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:11,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:11,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:11,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:11,328 INFO L87 Difference]: Start difference. First operand 8994 states and 24284 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:12,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:12,040 INFO L93 Difference]: Finished difference Result 11271 states and 30302 transitions. [2022-03-03 17:01:12,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 17:01:12,040 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:12,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:12,057 INFO L225 Difference]: With dead ends: 11271 [2022-03-03 17:01:12,057 INFO L226 Difference]: Without dead ends: 10657 [2022-03-03 17:01:12,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:01:12,058 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 497 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:12,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 3410 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:12,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10657 states. [2022-03-03 17:01:12,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10657 to 8998. [2022-03-03 17:01:12,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 2.699899966655552) internal successors, (24291), 8997 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:12,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 24291 transitions. [2022-03-03 17:01:12,197 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 24291 transitions. Word has length 109 [2022-03-03 17:01:12,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:12,197 INFO L470 AbstractCegarLoop]: Abstraction has 8998 states and 24291 transitions. [2022-03-03 17:01:12,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:12,197 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 24291 transitions. [2022-03-03 17:01:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:12,207 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:12,207 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:12,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-03 17:01:12,208 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:12,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash 824254586, now seen corresponding path program 123 times [2022-03-03 17:01:12,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:12,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401202556] [2022-03-03 17:01:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:12,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:12,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401202556] [2022-03-03 17:01:12,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401202556] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:12,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:12,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:12,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502485092] [2022-03-03 17:01:12,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:12,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:12,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:12,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:12,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:12,322 INFO L87 Difference]: Start difference. First operand 8998 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:12,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:12,999 INFO L93 Difference]: Finished difference Result 11139 states and 29960 transitions. [2022-03-03 17:01:13,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:01:13,000 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:13,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:13,019 INFO L225 Difference]: With dead ends: 11139 [2022-03-03 17:01:13,019 INFO L226 Difference]: Without dead ends: 10568 [2022-03-03 17:01:13,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 739 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:01:13,020 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 429 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:13,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 3512 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:13,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10568 states. [2022-03-03 17:01:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10568 to 9002. [2022-03-03 17:01:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9001 states have (on average 2.6994778357960225) internal successors, (24298), 9001 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24298 transitions. [2022-03-03 17:01:13,197 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24298 transitions. Word has length 109 [2022-03-03 17:01:13,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:13,197 INFO L470 AbstractCegarLoop]: Abstraction has 9002 states and 24298 transitions. [2022-03-03 17:01:13,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:13,197 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24298 transitions. [2022-03-03 17:01:13,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:13,209 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:13,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:13,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-03 17:01:13,209 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:13,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:13,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1681150256, now seen corresponding path program 124 times [2022-03-03 17:01:13,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:13,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847522969] [2022-03-03 17:01:13,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:13,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:13,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:13,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847522969] [2022-03-03 17:01:13,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847522969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:13,319 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:13,319 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:13,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314918795] [2022-03-03 17:01:13,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:13,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:13,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:13,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:13,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:13,320 INFO L87 Difference]: Start difference. First operand 9002 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:13,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:13,858 INFO L93 Difference]: Finished difference Result 11030 states and 29675 transitions. [2022-03-03 17:01:13,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:13,859 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:13,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:13,876 INFO L225 Difference]: With dead ends: 11030 [2022-03-03 17:01:13,876 INFO L226 Difference]: Without dead ends: 10502 [2022-03-03 17:01:13,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=444, Invalid=1626, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:01:13,877 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 365 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:13,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 3213 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:13,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-03-03 17:01:13,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 9006. [2022-03-03 17:01:14,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9006 states, 9005 states have (on average 2.69905607995558) internal successors, (24305), 9005 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9006 states to 9006 states and 24305 transitions. [2022-03-03 17:01:14,024 INFO L78 Accepts]: Start accepts. Automaton has 9006 states and 24305 transitions. Word has length 109 [2022-03-03 17:01:14,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:14,025 INFO L470 AbstractCegarLoop]: Abstraction has 9006 states and 24305 transitions. [2022-03-03 17:01:14,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:14,025 INFO L276 IsEmpty]: Start isEmpty. Operand 9006 states and 24305 transitions. [2022-03-03 17:01:14,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:14,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:14,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:14,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-03 17:01:14,037 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash 105784698, now seen corresponding path program 125 times [2022-03-03 17:01:14,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:14,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499140105] [2022-03-03 17:01:14,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:14,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:14,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:14,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499140105] [2022-03-03 17:01:14,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499140105] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:14,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:14,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:14,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544476284] [2022-03-03 17:01:14,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:14,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:14,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:14,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:14,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:14,151 INFO L87 Difference]: Start difference. First operand 9006 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:14,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:14,595 INFO L93 Difference]: Finished difference Result 10898 states and 29333 transitions. [2022-03-03 17:01:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:14,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:14,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:14,613 INFO L225 Difference]: With dead ends: 10898 [2022-03-03 17:01:14,613 INFO L226 Difference]: Without dead ends: 10413 [2022-03-03 17:01:14,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:14,614 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 302 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:14,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 3100 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10413 states. [2022-03-03 17:01:14,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10413 to 9010. [2022-03-03 17:01:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9010 states, 9009 states have (on average 2.6986346986346987) internal successors, (24312), 9009 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9010 states to 9010 states and 24312 transitions. [2022-03-03 17:01:14,763 INFO L78 Accepts]: Start accepts. Automaton has 9010 states and 24312 transitions. Word has length 109 [2022-03-03 17:01:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:14,763 INFO L470 AbstractCegarLoop]: Abstraction has 9010 states and 24312 transitions. [2022-03-03 17:01:14,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9010 states and 24312 transitions. [2022-03-03 17:01:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:14,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:14,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:14,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-03 17:01:14,775 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:14,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:14,776 INFO L85 PathProgramCache]: Analyzing trace with hash 787405352, now seen corresponding path program 126 times [2022-03-03 17:01:14,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:14,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502099585] [2022-03-03 17:01:14,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:14,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:14,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:14,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502099585] [2022-03-03 17:01:14,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502099585] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:14,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:14,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:14,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797786423] [2022-03-03 17:01:14,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:14,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:14,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:14,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:14,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:14,884 INFO L87 Difference]: Start difference. First operand 9010 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:15,281 INFO L93 Difference]: Finished difference Result 10728 states and 28870 transitions. [2022-03-03 17:01:15,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:01:15,281 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:15,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:15,299 INFO L225 Difference]: With dead ends: 10728 [2022-03-03 17:01:15,299 INFO L226 Difference]: Without dead ends: 10192 [2022-03-03 17:01:15,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:01:15,300 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 232 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:15,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3196 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:15,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10192 states. [2022-03-03 17:01:15,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10192 to 8956. [2022-03-03 17:01:15,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8956 states, 8955 states have (on average 2.7019542155220546) internal successors, (24196), 8955 states have internal predecessors, (24196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:15,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8956 states to 8956 states and 24196 transitions. [2022-03-03 17:01:15,449 INFO L78 Accepts]: Start accepts. Automaton has 8956 states and 24196 transitions. Word has length 109 [2022-03-03 17:01:15,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:15,449 INFO L470 AbstractCegarLoop]: Abstraction has 8956 states and 24196 transitions. [2022-03-03 17:01:15,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:15,449 INFO L276 IsEmpty]: Start isEmpty. Operand 8956 states and 24196 transitions. [2022-03-03 17:01:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:15,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:15,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:15,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-03 17:01:15,462 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:15,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:15,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1754725222, now seen corresponding path program 127 times [2022-03-03 17:01:15,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:15,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265323372] [2022-03-03 17:01:15,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:15,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:15,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:15,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265323372] [2022-03-03 17:01:15,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265323372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:15,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:15,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:15,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542975837] [2022-03-03 17:01:15,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:15,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:15,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:15,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:15,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:15,597 INFO L87 Difference]: Start difference. First operand 8956 states and 24196 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:16,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:16,115 INFO L93 Difference]: Finished difference Result 12078 states and 32580 transitions. [2022-03-03 17:01:16,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:01:16,116 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:16,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:16,137 INFO L225 Difference]: With dead ends: 12078 [2022-03-03 17:01:16,137 INFO L226 Difference]: Without dead ends: 11593 [2022-03-03 17:01:16,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:01:16,137 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 222 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:16,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3415 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:16,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2022-03-03 17:01:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 8992. [2022-03-03 17:01:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7017017017017015) internal successors, (24291), 8991 states have internal predecessors, (24291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:16,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24291 transitions. [2022-03-03 17:01:16,295 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24291 transitions. Word has length 109 [2022-03-03 17:01:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:16,295 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24291 transitions. [2022-03-03 17:01:16,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:16,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24291 transitions. [2022-03-03 17:01:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:16,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:16,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:16,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-03 17:01:16,308 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:16,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1858621420, now seen corresponding path program 128 times [2022-03-03 17:01:16,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:16,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710535771] [2022-03-03 17:01:16,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:16,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:16,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:16,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710535771] [2022-03-03 17:01:16,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710535771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:16,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:16,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:16,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048206602] [2022-03-03 17:01:16,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:16,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:16,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:16,419 INFO L87 Difference]: Start difference. First operand 8992 states and 24291 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:16,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:16,942 INFO L93 Difference]: Finished difference Result 12044 states and 32491 transitions. [2022-03-03 17:01:16,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:16,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:16,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:16,964 INFO L225 Difference]: With dead ends: 12044 [2022-03-03 17:01:16,965 INFO L226 Difference]: Without dead ends: 11558 [2022-03-03 17:01:16,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:16,965 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 215 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 3424 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:16,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 3424 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:16,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11558 states. [2022-03-03 17:01:17,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11558 to 8988. [2022-03-03 17:01:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7016802047401804) internal successors, (24280), 8987 states have internal predecessors, (24280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:17,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24280 transitions. [2022-03-03 17:01:17,124 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24280 transitions. Word has length 109 [2022-03-03 17:01:17,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:17,124 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24280 transitions. [2022-03-03 17:01:17,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:17,124 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24280 transitions. [2022-03-03 17:01:17,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:17,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:17,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:17,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-03 17:01:17,137 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:17,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:17,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1157933864, now seen corresponding path program 129 times [2022-03-03 17:01:17,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:17,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080217] [2022-03-03 17:01:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:17,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:17,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:17,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:17,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080217] [2022-03-03 17:01:17,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:17,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:17,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:17,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841767438] [2022-03-03 17:01:17,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:17,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:17,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:17,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:17,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:17,262 INFO L87 Difference]: Start difference. First operand 8988 states and 24280 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:17,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:17,945 INFO L93 Difference]: Finished difference Result 12080 states and 32586 transitions. [2022-03-03 17:01:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:17,945 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:17,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:17,965 INFO L225 Difference]: With dead ends: 12080 [2022-03-03 17:01:17,965 INFO L226 Difference]: Without dead ends: 11554 [2022-03-03 17:01:17,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:01:17,966 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 280 mSDsluCounter, 2812 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3076 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:17,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3076 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11554 states. [2022-03-03 17:01:18,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11554 to 8984. [2022-03-03 17:01:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7016586886340868) internal successors, (24269), 8983 states have internal predecessors, (24269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24269 transitions. [2022-03-03 17:01:18,124 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24269 transitions. Word has length 109 [2022-03-03 17:01:18,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:18,124 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24269 transitions. [2022-03-03 17:01:18,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:18,124 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24269 transitions. [2022-03-03 17:01:18,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:18,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:18,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:18,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-03 17:01:18,137 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:18,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:18,137 INFO L85 PathProgramCache]: Analyzing trace with hash 992956968, now seen corresponding path program 130 times [2022-03-03 17:01:18,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:18,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551154054] [2022-03-03 17:01:18,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:18,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:18,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:18,266 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:18,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551154054] [2022-03-03 17:01:18,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551154054] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:18,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:18,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:18,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324687761] [2022-03-03 17:01:18,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:18,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:18,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:18,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:18,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:18,268 INFO L87 Difference]: Start difference. First operand 8984 states and 24269 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:19,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:19,004 INFO L93 Difference]: Finished difference Result 12252 states and 33031 transitions. [2022-03-03 17:01:19,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:01:19,004 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:19,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:19,023 INFO L225 Difference]: With dead ends: 12252 [2022-03-03 17:01:19,023 INFO L226 Difference]: Without dead ends: 11686 [2022-03-03 17:01:19,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 17:01:19,024 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 348 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:19,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3119 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:19,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11686 states. [2022-03-03 17:01:19,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11686 to 8980. [2022-03-03 17:01:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701637153357835) internal successors, (24258), 8979 states have internal predecessors, (24258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24258 transitions. [2022-03-03 17:01:19,214 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24258 transitions. Word has length 109 [2022-03-03 17:01:19,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:19,215 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24258 transitions. [2022-03-03 17:01:19,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:19,215 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24258 transitions. [2022-03-03 17:01:19,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:19,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:19,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:19,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-03 17:01:19,227 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:19,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:19,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1509597844, now seen corresponding path program 131 times [2022-03-03 17:01:19,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:19,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491497916] [2022-03-03 17:01:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:19,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:19,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:19,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491497916] [2022-03-03 17:01:19,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491497916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:19,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:19,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:19,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658565814] [2022-03-03 17:01:19,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:19,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:19,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:19,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:19,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:19,340 INFO L87 Difference]: Start difference. First operand 8980 states and 24258 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:19,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:19,808 INFO L93 Difference]: Finished difference Result 12154 states and 32785 transitions. [2022-03-03 17:01:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:19,808 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:19,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:19,828 INFO L225 Difference]: With dead ends: 12154 [2022-03-03 17:01:19,828 INFO L226 Difference]: Without dead ends: 11669 [2022-03-03 17:01:19,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:19,829 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 235 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:19,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2744 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:19,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11669 states. [2022-03-03 17:01:19,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11669 to 8992. [2022-03-03 17:01:19,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-03 17:01:19,991 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-03 17:01:19,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:19,991 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-03 17:01:19,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:19,991 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-03 17:01:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:20,003 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:20,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:20,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-03 17:01:20,004 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:20,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:20,004 INFO L85 PathProgramCache]: Analyzing trace with hash -827977190, now seen corresponding path program 132 times [2022-03-03 17:01:20,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:20,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107149612] [2022-03-03 17:01:20,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:20,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:20,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:20,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:20,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107149612] [2022-03-03 17:01:20,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107149612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:20,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:20,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:20,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210676249] [2022-03-03 17:01:20,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:20,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:20,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:20,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:20,113 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:20,615 INFO L93 Difference]: Finished difference Result 12112 states and 32674 transitions. [2022-03-03 17:01:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:20,615 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:20,634 INFO L225 Difference]: With dead ends: 12112 [2022-03-03 17:01:20,634 INFO L226 Difference]: Without dead ends: 11626 [2022-03-03 17:01:20,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:20,635 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 225 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:20,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 3260 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:20,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11626 states. [2022-03-03 17:01:20,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11626 to 8988. [2022-03-03 17:01:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-03 17:01:20,791 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-03 17:01:20,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:20,791 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-03 17:01:20,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-03 17:01:20,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:20,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:20,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:20,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-03 17:01:20,803 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:20,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash -127289634, now seen corresponding path program 133 times [2022-03-03 17:01:20,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:20,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210021336] [2022-03-03 17:01:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:20,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:20,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:20,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210021336] [2022-03-03 17:01:20,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210021336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:20,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:20,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:20,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459618015] [2022-03-03 17:01:20,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:20,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:20,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:20,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:20,918 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:21,535 INFO L93 Difference]: Finished difference Result 12240 states and 33006 transitions. [2022-03-03 17:01:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:21,535 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:21,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:21,554 INFO L225 Difference]: With dead ends: 12240 [2022-03-03 17:01:21,555 INFO L226 Difference]: Without dead ends: 11714 [2022-03-03 17:01:21,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:01:21,555 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 286 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:21,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 3511 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-03-03 17:01:21,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8984. [2022-03-03 17:01:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-03 17:01:21,716 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-03 17:01:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:21,716 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-03 17:01:21,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-03 17:01:21,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:21,729 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:21,729 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:21,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-03 17:01:21,729 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:21,729 INFO L85 PathProgramCache]: Analyzing trace with hash 950398394, now seen corresponding path program 134 times [2022-03-03 17:01:21,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:21,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015535998] [2022-03-03 17:01:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:21,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:21,841 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:21,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015535998] [2022-03-03 17:01:21,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015535998] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:21,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:21,841 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:21,841 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765061890] [2022-03-03 17:01:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:21,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:21,841 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:21,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:21,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:21,842 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:22,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:22,426 INFO L93 Difference]: Finished difference Result 12242 states and 32998 transitions. [2022-03-03 17:01:22,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:01:22,427 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:22,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:22,446 INFO L225 Difference]: With dead ends: 12242 [2022-03-03 17:01:22,446 INFO L226 Difference]: Without dead ends: 11714 [2022-03-03 17:01:22,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:01:22,447 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 293 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:22,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 3366 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:22,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11714 states. [2022-03-03 17:01:22,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11714 to 8988. [2022-03-03 17:01:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:22,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:01:22,606 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:01:22,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:22,606 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:01:22,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:22,606 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:01:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:22,619 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:22,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:22,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-03 17:01:22,619 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:22,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:22,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1557633948, now seen corresponding path program 135 times [2022-03-03 17:01:22,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:22,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088411251] [2022-03-03 17:01:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:22,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:22,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088411251] [2022-03-03 17:01:22,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088411251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:22,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:22,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:22,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336309870] [2022-03-03 17:01:22,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:22,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:22,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:22,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:22,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:22,730 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:23,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:23,229 INFO L93 Difference]: Finished difference Result 12094 states and 32612 transitions. [2022-03-03 17:01:23,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:23,230 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:23,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:23,251 INFO L225 Difference]: With dead ends: 12094 [2022-03-03 17:01:23,251 INFO L226 Difference]: Without dead ends: 11609 [2022-03-03 17:01:23,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:01:23,252 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 236 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:23,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 3279 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:23,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2022-03-03 17:01:23,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 8992. [2022-03-03 17:01:23,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:01:23,429 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:01:23,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:23,430 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:01:23,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:01:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:23,443 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:23,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:23,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-03 17:01:23,443 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:23,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:23,443 INFO L85 PathProgramCache]: Analyzing trace with hash -876013294, now seen corresponding path program 136 times [2022-03-03 17:01:23,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:23,444 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249265795] [2022-03-03 17:01:23,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:23,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:23,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:23,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249265795] [2022-03-03 17:01:23,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249265795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:23,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:23,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:23,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277310149] [2022-03-03 17:01:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:23,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:23,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:23,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:23,553 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:24,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:24,012 INFO L93 Difference]: Finished difference Result 12012 states and 32391 transitions. [2022-03-03 17:01:24,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:24,012 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:24,031 INFO L225 Difference]: With dead ends: 12012 [2022-03-03 17:01:24,032 INFO L226 Difference]: Without dead ends: 11514 [2022-03-03 17:01:24,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:24,032 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 220 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:24,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3241 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:24,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-03-03 17:01:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8976. [2022-03-03 17:01:24,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7016155988857937) internal successors, (24247), 8975 states have internal predecessors, (24247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24247 transitions. [2022-03-03 17:01:24,187 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24247 transitions. Word has length 109 [2022-03-03 17:01:24,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:24,187 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24247 transitions. [2022-03-03 17:01:24,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:24,188 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24247 transitions. [2022-03-03 17:01:24,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:24,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:24,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:24,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-03 17:01:24,202 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:24,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash -427653532, now seen corresponding path program 137 times [2022-03-03 17:01:24,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:24,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612716761] [2022-03-03 17:01:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:24,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:24,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:24,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:24,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612716761] [2022-03-03 17:01:24,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612716761] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:24,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:24,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:24,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895585037] [2022-03-03 17:01:24,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:24,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:24,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:24,312 INFO L87 Difference]: Start difference. First operand 8976 states and 24247 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:24,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:24,804 INFO L93 Difference]: Finished difference Result 12030 states and 32444 transitions. [2022-03-03 17:01:24,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:24,804 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:24,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:24,823 INFO L225 Difference]: With dead ends: 12030 [2022-03-03 17:01:24,824 INFO L226 Difference]: Without dead ends: 11545 [2022-03-03 17:01:24,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:24,824 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 233 mSDsluCounter, 3020 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 3262 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:24,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 3262 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:24,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11545 states. [2022-03-03 17:01:25,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11545 to 8992. [2022-03-03 17:01:25,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:25,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-03 17:01:25,042 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-03 17:01:25,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:25,042 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-03 17:01:25,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:25,042 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-03 17:01:25,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:25,057 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:25,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:25,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-03 17:01:25,058 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:25,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:25,058 INFO L85 PathProgramCache]: Analyzing trace with hash 253967122, now seen corresponding path program 138 times [2022-03-03 17:01:25,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:25,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652547205] [2022-03-03 17:01:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:25,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:25,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:25,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652547205] [2022-03-03 17:01:25,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652547205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:25,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:25,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:25,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110968812] [2022-03-03 17:01:25,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:25,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:25,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:25,231 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:25,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:25,721 INFO L93 Difference]: Finished difference Result 11988 states and 32333 transitions. [2022-03-03 17:01:25,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:25,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:25,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:25,740 INFO L225 Difference]: With dead ends: 11988 [2022-03-03 17:01:25,741 INFO L226 Difference]: Without dead ends: 11502 [2022-03-03 17:01:25,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:25,741 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 221 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3255 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:25,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3255 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:25,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11502 states. [2022-03-03 17:01:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11502 to 8988. [2022-03-03 17:01:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:25,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-03 17:01:25,890 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-03 17:01:25,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:25,890 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-03 17:01:25,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-03 17:01:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:25,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:25,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:25,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-03 17:01:25,902 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash 954654678, now seen corresponding path program 139 times [2022-03-03 17:01:25,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:25,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277202354] [2022-03-03 17:01:25,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:25,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:26,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:26,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277202354] [2022-03-03 17:01:26,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277202354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:26,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:26,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:26,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232325745] [2022-03-03 17:01:26,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:26,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:26,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:26,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:26,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:26,018 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:26,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:26,598 INFO L93 Difference]: Finished difference Result 12116 states and 32665 transitions. [2022-03-03 17:01:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:01:26,599 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:26,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:26,619 INFO L225 Difference]: With dead ends: 12116 [2022-03-03 17:01:26,619 INFO L226 Difference]: Without dead ends: 11590 [2022-03-03 17:01:26,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:01:26,619 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 290 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:26,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3059 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-03-03 17:01:26,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 8984. [2022-03-03 17:01:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-03 17:01:26,783 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-03 17:01:26,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:26,783 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-03 17:01:26,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-03 17:01:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:26,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:26,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:26,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-03 17:01:26,796 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:26,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:26,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2032342706, now seen corresponding path program 140 times [2022-03-03 17:01:26,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:26,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309662755] [2022-03-03 17:01:26,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:26,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:26,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:26,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309662755] [2022-03-03 17:01:26,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309662755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:26,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:26,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:26,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446971996] [2022-03-03 17:01:26,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:26,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:26,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:26,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:26,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:26,908 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:27,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:27,545 INFO L93 Difference]: Finished difference Result 12198 states and 32877 transitions. [2022-03-03 17:01:27,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:27,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:27,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:27,567 INFO L225 Difference]: With dead ends: 12198 [2022-03-03 17:01:27,567 INFO L226 Difference]: Without dead ends: 11670 [2022-03-03 17:01:27,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:01:27,567 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 282 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:27,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3537 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:27,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2022-03-03 17:01:27,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 8988. [2022-03-03 17:01:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:01:27,727 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:01:27,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:27,727 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:01:27,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:01:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:27,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:27,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:27,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-03 17:01:27,740 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:27,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:27,740 INFO L85 PathProgramCache]: Analyzing trace with hash -475689636, now seen corresponding path program 141 times [2022-03-03 17:01:27,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:27,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519430273] [2022-03-03 17:01:27,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:27,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:27,851 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:27,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519430273] [2022-03-03 17:01:27,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519430273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:27,852 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:27,852 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:27,852 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237110984] [2022-03-03 17:01:27,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:27,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:27,852 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:27,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:27,852 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:28,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:28,356 INFO L93 Difference]: Finished difference Result 12034 states and 32447 transitions. [2022-03-03 17:01:28,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:28,356 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:28,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:28,376 INFO L225 Difference]: With dead ends: 12034 [2022-03-03 17:01:28,376 INFO L226 Difference]: Without dead ends: 11549 [2022-03-03 17:01:28,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:01:28,377 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 231 mSDsluCounter, 3036 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 3282 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:28,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 3282 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:28,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11549 states. [2022-03-03 17:01:28,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11549 to 8992. [2022-03-03 17:01:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:01:28,537 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:01:28,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:28,537 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:01:28,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:01:28,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:28,550 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:28,550 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:28,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-03 17:01:28,550 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:28,550 INFO L85 PathProgramCache]: Analyzing trace with hash 205931018, now seen corresponding path program 142 times [2022-03-03 17:01:28,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:28,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412404880] [2022-03-03 17:01:28,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:28,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:28,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:28,682 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:28,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412404880] [2022-03-03 17:01:28,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412404880] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:28,682 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:28,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:28,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593085659] [2022-03-03 17:01:28,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:28,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:28,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:28,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:28,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:28,683 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:29,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:29,154 INFO L93 Difference]: Finished difference Result 11968 states and 32270 transitions. [2022-03-03 17:01:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:29,154 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:29,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:29,174 INFO L225 Difference]: With dead ends: 11968 [2022-03-03 17:01:29,174 INFO L226 Difference]: Without dead ends: 11474 [2022-03-03 17:01:29,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:29,174 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 219 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:29,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3247 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:29,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11474 states. [2022-03-03 17:01:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11474 to 8980. [2022-03-03 17:01:29,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-03 17:01:29,332 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-03 17:01:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:29,333 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-03 17:01:29,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-03 17:01:29,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:29,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:29,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:29,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-03 17:01:29,345 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:29,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:29,346 INFO L85 PathProgramCache]: Analyzing trace with hash 528864870, now seen corresponding path program 143 times [2022-03-03 17:01:29,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:29,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673644450] [2022-03-03 17:01:29,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:29,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:29,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:29,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673644450] [2022-03-03 17:01:29,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673644450] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:29,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:29,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:29,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185515554] [2022-03-03 17:01:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:29,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:29,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:29,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:29,463 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:30,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:30,140 INFO L93 Difference]: Finished difference Result 12111 states and 32619 transitions. [2022-03-03 17:01:30,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:01:30,140 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:30,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:30,159 INFO L225 Difference]: With dead ends: 12111 [2022-03-03 17:01:30,160 INFO L226 Difference]: Without dead ends: 11540 [2022-03-03 17:01:30,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:01:30,160 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 344 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:30,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [344 Valid, 3452 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:30,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2022-03-03 17:01:30,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 8984. [2022-03-03 17:01:30,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:01:30,325 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:01:30,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:30,325 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:01:30,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:01:30,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:30,338 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:30,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:30,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-03 17:01:30,340 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:30,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:30,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1976539972, now seen corresponding path program 144 times [2022-03-03 17:01:30,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:30,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059151840] [2022-03-03 17:01:30,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:30,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:30,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:30,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059151840] [2022-03-03 17:01:30,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059151840] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:30,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:30,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:30,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846324160] [2022-03-03 17:01:30,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:30,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:30,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:30,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:30,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:30,451 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:31,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:31,073 INFO L93 Difference]: Finished difference Result 12098 states and 32598 transitions. [2022-03-03 17:01:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:31,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:31,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:31,093 INFO L225 Difference]: With dead ends: 12098 [2022-03-03 17:01:31,094 INFO L226 Difference]: Without dead ends: 11570 [2022-03-03 17:01:31,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:01:31,094 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 290 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:31,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 3391 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:31,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2022-03-03 17:01:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 8988. [2022-03-03 17:01:31,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:01:31,289 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:01:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:31,289 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:01:31,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:01:31,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:31,301 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:31,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:31,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-03 17:01:31,301 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash -189605018, now seen corresponding path program 145 times [2022-03-03 17:01:31,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:31,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937586755] [2022-03-03 17:01:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:31,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:31,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:31,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:31,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937586755] [2022-03-03 17:01:31,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937586755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:31,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:31,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:31,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349946442] [2022-03-03 17:01:31,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:31,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:31,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:31,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:31,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:31,430 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:31,964 INFO L93 Difference]: Finished difference Result 11934 states and 32168 transitions. [2022-03-03 17:01:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:31,964 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:31,983 INFO L225 Difference]: With dead ends: 11934 [2022-03-03 17:01:31,984 INFO L226 Difference]: Without dead ends: 11449 [2022-03-03 17:01:31,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:31,984 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 214 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:31,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3465 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-03-03 17:01:32,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 8992. [2022-03-03 17:01:32,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-03 17:01:32,138 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-03 17:01:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:32,138 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-03 17:01:32,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-03 17:01:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:32,151 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:32,151 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:32,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-03 17:01:32,151 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:32,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:32,151 INFO L85 PathProgramCache]: Analyzing trace with hash 492015636, now seen corresponding path program 146 times [2022-03-03 17:01:32,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:32,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339828611] [2022-03-03 17:01:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:32,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:32,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:32,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339828611] [2022-03-03 17:01:32,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339828611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:32,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:32,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:32,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962283037] [2022-03-03 17:01:32,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:32,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:32,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:32,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:32,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:32,265 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:32,707 INFO L93 Difference]: Finished difference Result 11868 states and 31991 transitions. [2022-03-03 17:01:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:01:32,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:32,727 INFO L225 Difference]: With dead ends: 11868 [2022-03-03 17:01:32,728 INFO L226 Difference]: Without dead ends: 11366 [2022-03-03 17:01:32,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:01:32,728 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 212 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:32,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3263 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11366 states. [2022-03-03 17:01:32,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11366 to 8972. [2022-03-03 17:01:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701594025192286) internal successors, (24236), 8971 states have internal predecessors, (24236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24236 transitions. [2022-03-03 17:01:32,889 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24236 transitions. Word has length 109 [2022-03-03 17:01:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:32,889 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24236 transitions. [2022-03-03 17:01:32,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24236 transitions. [2022-03-03 17:01:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:32,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:32,903 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:32,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-03 17:01:32,903 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:32,903 INFO L85 PathProgramCache]: Analyzing trace with hash -520821786, now seen corresponding path program 147 times [2022-03-03 17:01:32,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:32,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047751132] [2022-03-03 17:01:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:32,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:33,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:33,017 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:33,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047751132] [2022-03-03 17:01:33,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047751132] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:33,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:33,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:33,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845433687] [2022-03-03 17:01:33,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:33,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:33,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:33,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:33,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:33,018 INFO L87 Difference]: Start difference. First operand 8972 states and 24236 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:33,505 INFO L93 Difference]: Finished difference Result 11938 states and 32191 transitions. [2022-03-03 17:01:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:01:33,505 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:33,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:33,524 INFO L225 Difference]: With dead ends: 11938 [2022-03-03 17:01:33,525 INFO L226 Difference]: Without dead ends: 11453 [2022-03-03 17:01:33,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:01:33,525 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 219 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:33,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3164 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:33,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-03-03 17:01:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 8992. [2022-03-03 17:01:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-03 17:01:33,680 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-03 17:01:33,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:33,680 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-03 17:01:33,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:33,680 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-03 17:01:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:33,693 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:33,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:33,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-03 17:01:33,693 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash 160798868, now seen corresponding path program 148 times [2022-03-03 17:01:33,693 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:33,693 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059813180] [2022-03-03 17:01:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:33,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:33,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:33,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059813180] [2022-03-03 17:01:33,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059813180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:33,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:33,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:33,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044705230] [2022-03-03 17:01:33,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:33,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:33,802 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:33,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:33,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:33,802 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:34,281 INFO L93 Difference]: Finished difference Result 11904 states and 32102 transitions. [2022-03-03 17:01:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:34,281 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:34,301 INFO L225 Difference]: With dead ends: 11904 [2022-03-03 17:01:34,301 INFO L226 Difference]: Without dead ends: 11418 [2022-03-03 17:01:34,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:34,301 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 212 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:34,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3428 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11418 states. [2022-03-03 17:01:34,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11418 to 8988. [2022-03-03 17:01:34,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-03 17:01:34,461 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-03 17:01:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:34,462 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-03 17:01:34,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:34,462 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-03 17:01:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:34,474 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:34,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:34,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-03 17:01:34,474 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:34,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:34,475 INFO L85 PathProgramCache]: Analyzing trace with hash 861486424, now seen corresponding path program 149 times [2022-03-03 17:01:34,475 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:34,475 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402947597] [2022-03-03 17:01:34,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:34,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:34,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:34,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402947597] [2022-03-03 17:01:34,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402947597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:34,599 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:34,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:34,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546798886] [2022-03-03 17:01:34,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:34,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:34,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:34,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:34,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:34,600 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:35,234 INFO L93 Difference]: Finished difference Result 11940 states and 32197 transitions. [2022-03-03 17:01:35,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:35,235 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:35,255 INFO L225 Difference]: With dead ends: 11940 [2022-03-03 17:01:35,255 INFO L226 Difference]: Without dead ends: 11414 [2022-03-03 17:01:35,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1529, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:01:35,255 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 268 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:35,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 3526 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-03-03 17:01:35,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 8984. [2022-03-03 17:01:35,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-03 17:01:35,419 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-03 17:01:35,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:35,419 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-03 17:01:35,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:35,419 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-03 17:01:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:35,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:35,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:35,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-03 17:01:35,431 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:35,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1282590040, now seen corresponding path program 150 times [2022-03-03 17:01:35,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:35,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716634070] [2022-03-03 17:01:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:35,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:35,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:35,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:35,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716634070] [2022-03-03 17:01:35,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716634070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:35,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:35,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:35,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532702631] [2022-03-03 17:01:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:35,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:35,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:35,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:35,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:35,547 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:36,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:36,242 INFO L93 Difference]: Finished difference Result 12168 states and 32796 transitions. [2022-03-03 17:01:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:01:36,243 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:36,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:36,264 INFO L225 Difference]: With dead ends: 12168 [2022-03-03 17:01:36,265 INFO L226 Difference]: Without dead ends: 11602 [2022-03-03 17:01:36,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:01:36,265 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 347 mSDsluCounter, 3141 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:36,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 3406 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:36,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11602 states. [2022-03-03 17:01:36,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11602 to 8980. [2022-03-03 17:01:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-03 17:01:36,438 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-03 17:01:36,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:36,439 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-03 17:01:36,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-03 17:01:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:36,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:36,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:36,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-03 17:01:36,452 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:36,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:36,452 INFO L85 PathProgramCache]: Analyzing trace with hash 509822444, now seen corresponding path program 151 times [2022-03-03 17:01:36,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:36,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547549745] [2022-03-03 17:01:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:36,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:36,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547549745] [2022-03-03 17:01:36,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547549745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:36,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:36,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:36,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689777746] [2022-03-03 17:01:36,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:36,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:36,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:36,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:36,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:36,575 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:37,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:37,070 INFO L93 Difference]: Finished difference Result 11914 states and 32121 transitions. [2022-03-03 17:01:37,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:37,070 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:37,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:37,089 INFO L225 Difference]: With dead ends: 11914 [2022-03-03 17:01:37,089 INFO L226 Difference]: Without dead ends: 11429 [2022-03-03 17:01:37,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:37,090 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 229 mSDsluCounter, 2493 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:37,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2745 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:37,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11429 states. [2022-03-03 17:01:37,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11429 to 8992. [2022-03-03 17:01:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:37,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:01:37,259 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:01:37,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:37,259 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:01:37,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:37,259 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:01:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:37,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:37,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:37,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-03 17:01:37,271 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:37,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:37,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1191443098, now seen corresponding path program 152 times [2022-03-03 17:01:37,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:37,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948010519] [2022-03-03 17:01:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:37,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:37,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:37,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:37,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948010519] [2022-03-03 17:01:37,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948010519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:37,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:37,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:37,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974846359] [2022-03-03 17:01:37,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:37,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:37,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:37,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:37,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:37,392 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:37,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:37,858 INFO L93 Difference]: Finished difference Result 11872 states and 32010 transitions. [2022-03-03 17:01:37,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:37,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:37,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:37,877 INFO L225 Difference]: With dead ends: 11872 [2022-03-03 17:01:37,877 INFO L226 Difference]: Without dead ends: 11386 [2022-03-03 17:01:37,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:37,878 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 219 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:37,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 3256 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11386 states. [2022-03-03 17:01:38,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11386 to 8988. [2022-03-03 17:01:38,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:01:38,030 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:01:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:38,030 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:01:38,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:01:38,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:38,042 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:38,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:38,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-03 17:01:38,042 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:38,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:38,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1892130654, now seen corresponding path program 153 times [2022-03-03 17:01:38,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:38,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800248661] [2022-03-03 17:01:38,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:38,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:38,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:38,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800248661] [2022-03-03 17:01:38,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800248661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:38,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:38,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:38,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151146799] [2022-03-03 17:01:38,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:38,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:38,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:38,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:38,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:38,159 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:38,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:38,739 INFO L93 Difference]: Finished difference Result 12040 states and 32452 transitions. [2022-03-03 17:01:38,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:38,739 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:38,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:38,758 INFO L225 Difference]: With dead ends: 12040 [2022-03-03 17:01:38,758 INFO L226 Difference]: Without dead ends: 11514 [2022-03-03 17:01:38,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:01:38,759 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 290 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2797 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:38,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2797 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:38,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2022-03-03 17:01:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 8984. [2022-03-03 17:01:38,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:38,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:01:38,911 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:01:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:38,911 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:01:38,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:01:38,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:38,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:38,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:38,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-03 17:01:38,923 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:38,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:38,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1325148614, now seen corresponding path program 154 times [2022-03-03 17:01:38,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:38,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832634788] [2022-03-03 17:01:38,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:38,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:39,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:39,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832634788] [2022-03-03 17:01:39,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832634788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:39,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:39,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:39,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534661275] [2022-03-03 17:01:39,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:39,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:39,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:39,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:39,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:39,034 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:39,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:39,640 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-03-03 17:01:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:01:39,640 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:39,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:39,660 INFO L225 Difference]: With dead ends: 11958 [2022-03-03 17:01:39,660 INFO L226 Difference]: Without dead ends: 11430 [2022-03-03 17:01:39,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:01:39,661 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 276 mSDsluCounter, 3279 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3518 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:39,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3518 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:39,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-03-03 17:01:39,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-03-03 17:01:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:39,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:01:39,832 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:01:39,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:39,832 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:01:39,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:39,832 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:01:39,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:39,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:39,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:39,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-03 17:01:39,846 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:39,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:39,846 INFO L85 PathProgramCache]: Analyzing trace with hash 461786340, now seen corresponding path program 155 times [2022-03-03 17:01:39,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:39,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083526166] [2022-03-03 17:01:39,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:39,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:39,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:39,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:39,973 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083526166] [2022-03-03 17:01:39,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083526166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:39,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:39,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:39,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738512049] [2022-03-03 17:01:39,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:39,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:39,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:39,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:39,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:39,974 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:40,539 INFO L93 Difference]: Finished difference Result 11858 states and 31959 transitions. [2022-03-03 17:01:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:40,539 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:40,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:40,560 INFO L225 Difference]: With dead ends: 11858 [2022-03-03 17:01:40,560 INFO L226 Difference]: Without dead ends: 11373 [2022-03-03 17:01:40,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1057, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:40,560 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 2932 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:40,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3180 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:40,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2022-03-03 17:01:40,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 8992. [2022-03-03 17:01:40,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-03 17:01:40,739 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-03 17:01:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:40,739 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-03 17:01:40,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-03 17:01:40,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:40,752 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:40,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:40,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-03 17:01:40,753 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:40,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:40,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1143406994, now seen corresponding path program 156 times [2022-03-03 17:01:40,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:40,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245107492] [2022-03-03 17:01:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:40,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:40,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:40,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245107492] [2022-03-03 17:01:40,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245107492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:40,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:40,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:40,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216721073] [2022-03-03 17:01:40,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:40,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:40,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:40,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:40,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:40,869 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:41,374 INFO L93 Difference]: Finished difference Result 11808 states and 31826 transitions. [2022-03-03 17:01:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:41,395 INFO L225 Difference]: With dead ends: 11808 [2022-03-03 17:01:41,395 INFO L226 Difference]: Without dead ends: 11310 [2022-03-03 17:01:41,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:41,396 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 212 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:41,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 3267 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:41,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11310 states. [2022-03-03 17:01:41,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11310 to 8976. [2022-03-03 17:01:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:41,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-03-03 17:01:41,571 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-03-03 17:01:41,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:41,571 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-03-03 17:01:41,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:41,571 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-03-03 17:01:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:41,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:41,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:41,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-03 17:01:41,584 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:41,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash 957822372, now seen corresponding path program 157 times [2022-03-03 17:01:41,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:41,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481817698] [2022-03-03 17:01:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:41,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:41,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:41,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481817698] [2022-03-03 17:01:41,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481817698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:41,703 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:41,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:41,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269789572] [2022-03-03 17:01:41,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:41,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:41,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:41,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:41,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:41,704 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:42,210 INFO L93 Difference]: Finished difference Result 11750 states and 31670 transitions. [2022-03-03 17:01:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:01:42,210 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:42,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:42,231 INFO L225 Difference]: With dead ends: 11750 [2022-03-03 17:01:42,231 INFO L226 Difference]: Without dead ends: 11265 [2022-03-03 17:01:42,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:01:42,231 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 214 mSDsluCounter, 3181 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:42,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3417 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:42,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11265 states. [2022-03-03 17:01:42,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11265 to 8992. [2022-03-03 17:01:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:01:42,411 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:01:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:42,411 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:01:42,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:01:42,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:42,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:42,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:42,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-03 17:01:42,425 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:42,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:42,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1639443026, now seen corresponding path program 158 times [2022-03-03 17:01:42,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:42,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721241005] [2022-03-03 17:01:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:42,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:42,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:42,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721241005] [2022-03-03 17:01:42,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721241005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:42,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:42,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:42,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525908323] [2022-03-03 17:01:42,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:42,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:42,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:42,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:42,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:42,547 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:43,066 INFO L93 Difference]: Finished difference Result 11720 states and 31592 transitions. [2022-03-03 17:01:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:43,087 INFO L225 Difference]: With dead ends: 11720 [2022-03-03 17:01:43,087 INFO L226 Difference]: Without dead ends: 11234 [2022-03-03 17:01:43,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:43,088 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 217 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:43,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 3265 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-03 17:01:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8988. [2022-03-03 17:01:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:01:43,281 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:01:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:43,281 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:01:43,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:01:43,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:43,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:43,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:43,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-03 17:01:43,294 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1954836714, now seen corresponding path program 159 times [2022-03-03 17:01:43,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:43,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051616089] [2022-03-03 17:01:43,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:43,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:43,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:43,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:43,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051616089] [2022-03-03 17:01:43,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051616089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:43,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:43,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:43,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067344876] [2022-03-03 17:01:43,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:43,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:43,415 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:43,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:43,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:43,415 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:44,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:44,021 INFO L93 Difference]: Finished difference Result 11756 states and 31687 transitions. [2022-03-03 17:01:44,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:44,021 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:44,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:44,039 INFO L225 Difference]: With dead ends: 11756 [2022-03-03 17:01:44,040 INFO L226 Difference]: Without dead ends: 11230 [2022-03-03 17:01:44,040 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:01:44,040 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 264 mSDsluCounter, 2731 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:44,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2996 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:44,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-03-03 17:01:44,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8984. [2022-03-03 17:01:44,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:01:44,209 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:01:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:44,209 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:01:44,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:44,209 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:01:44,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:44,222 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:44,222 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:44,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-03 17:01:44,222 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash 196054118, now seen corresponding path program 160 times [2022-03-03 17:01:44,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:44,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528470710] [2022-03-03 17:01:44,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:44,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:44,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:44,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528470710] [2022-03-03 17:01:44,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528470710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:44,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:44,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:44,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182638228] [2022-03-03 17:01:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:44,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:44,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:44,334 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:45,002 INFO L93 Difference]: Finished difference Result 11792 states and 31782 transitions. [2022-03-03 17:01:45,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:01:45,003 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:45,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:45,023 INFO L225 Difference]: With dead ends: 11792 [2022-03-03 17:01:45,023 INFO L226 Difference]: Without dead ends: 11226 [2022-03-03 17:01:45,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:01:45,024 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 320 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:45,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [320 Valid, 3439 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:45,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11226 states. [2022-03-03 17:01:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11226 to 8980. [2022-03-03 17:01:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-03 17:01:45,183 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-03 17:01:45,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:45,183 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-03 17:01:45,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-03 17:01:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:45,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:45,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:45,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-03 17:01:45,195 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:45,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:45,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1160245466, now seen corresponding path program 161 times [2022-03-03 17:01:45,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:45,196 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616130537] [2022-03-03 17:01:45,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:45,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:45,321 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:45,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616130537] [2022-03-03 17:01:45,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616130537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:45,321 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:45,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:45,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844643493] [2022-03-03 17:01:45,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:45,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:45,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:45,322 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:46,046 INFO L93 Difference]: Finished difference Result 11976 states and 32252 transitions. [2022-03-03 17:01:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 17:01:46,046 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:46,065 INFO L225 Difference]: With dead ends: 11976 [2022-03-03 17:01:46,065 INFO L226 Difference]: Without dead ends: 11362 [2022-03-03 17:01:46,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:01:46,066 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 405 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:46,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3452 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:46,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11362 states. [2022-03-03 17:01:46,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11362 to 8968. [2022-03-03 17:01:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8968 states, 8967 states have (on average 2.7015724322515893) internal successors, (24225), 8967 states have internal predecessors, (24225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 24225 transitions. [2022-03-03 17:01:46,229 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 24225 transitions. Word has length 109 [2022-03-03 17:01:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:46,229 INFO L470 AbstractCegarLoop]: Abstraction has 8968 states and 24225 transitions. [2022-03-03 17:01:46,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:46,230 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 24225 transitions. [2022-03-03 17:01:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:46,245 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:46,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:46,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-03 17:01:46,245 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:46,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:46,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1809823296, now seen corresponding path program 162 times [2022-03-03 17:01:46,246 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:46,246 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331006090] [2022-03-03 17:01:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:46,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:46,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:46,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:46,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331006090] [2022-03-03 17:01:46,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331006090] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:46,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:46,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:46,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033182960] [2022-03-03 17:01:46,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:46,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:46,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:46,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:46,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:46,454 INFO L87 Difference]: Start difference. First operand 8968 states and 24225 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:46,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:46,929 INFO L93 Difference]: Finished difference Result 11686 states and 31498 transitions. [2022-03-03 17:01:46,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:01:46,929 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:46,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:46,948 INFO L225 Difference]: With dead ends: 11686 [2022-03-03 17:01:46,949 INFO L226 Difference]: Without dead ends: 11201 [2022-03-03 17:01:46,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:01:46,949 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 214 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:46,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2749 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:46,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11201 states. [2022-03-03 17:01:47,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11201 to 8992. [2022-03-03 17:01:47,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:47,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-03 17:01:47,117 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-03 17:01:47,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:47,118 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-03 17:01:47,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:47,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-03 17:01:47,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:47,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:47,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:47,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-03 17:01:47,131 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:47,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:47,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1128202642, now seen corresponding path program 163 times [2022-03-03 17:01:47,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:47,131 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328184523] [2022-03-03 17:01:47,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:47,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:47,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:47,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328184523] [2022-03-03 17:01:47,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328184523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:47,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:47,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:47,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263835214] [2022-03-03 17:01:47,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:47,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:47,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:47,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:47,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:47,256 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:47,735 INFO L93 Difference]: Finished difference Result 11652 states and 31409 transitions. [2022-03-03 17:01:47,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:47,736 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:47,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:47,756 INFO L225 Difference]: With dead ends: 11652 [2022-03-03 17:01:47,756 INFO L226 Difference]: Without dead ends: 11166 [2022-03-03 17:01:47,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:47,757 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 204 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:47,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 3266 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-03-03 17:01:47,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-03-03 17:01:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-03 17:01:47,915 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-03 17:01:47,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:47,915 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-03 17:01:47,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-03 17:01:47,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:47,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:47,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:47,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-03 17:01:47,927 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:47,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash -427515086, now seen corresponding path program 164 times [2022-03-03 17:01:47,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:47,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540367092] [2022-03-03 17:01:47,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:48,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:48,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540367092] [2022-03-03 17:01:48,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540367092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:48,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:48,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:48,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800036747] [2022-03-03 17:01:48,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:48,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:48,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:48,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:48,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:48,048 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:48,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:48,679 INFO L93 Difference]: Finished difference Result 11688 states and 31504 transitions. [2022-03-03 17:01:48,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:01:48,679 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:48,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:48,698 INFO L225 Difference]: With dead ends: 11688 [2022-03-03 17:01:48,698 INFO L226 Difference]: Without dead ends: 11162 [2022-03-03 17:01:48,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:01:48,698 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 262 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3089 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:48,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3089 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-03-03 17:01:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-03-03 17:01:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:48,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-03 17:01:48,848 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-03 17:01:48,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:48,848 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-03 17:01:48,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:48,848 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-03 17:01:48,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:48,860 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:48,860 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:48,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-03 17:01:48,860 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:48,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:48,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1723375746, now seen corresponding path program 165 times [2022-03-03 17:01:48,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:48,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43825332] [2022-03-03 17:01:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:48,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:48,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:48,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43825332] [2022-03-03 17:01:48,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43825332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:48,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:48,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:48,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866985810] [2022-03-03 17:01:48,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:48,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:48,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:48,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:48,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:48,969 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:49,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:49,641 INFO L93 Difference]: Finished difference Result 11832 states and 31872 transitions. [2022-03-03 17:01:49,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:01:49,641 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:49,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:49,657 INFO L225 Difference]: With dead ends: 11832 [2022-03-03 17:01:49,657 INFO L226 Difference]: Without dead ends: 11266 [2022-03-03 17:01:49,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 17:01:49,658 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 332 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 3385 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:49,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 3385 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:49,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-03-03 17:01:49,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8980. [2022-03-03 17:01:49,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-03 17:01:49,801 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-03 17:01:49,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:49,801 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-03 17:01:49,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-03 17:01:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:49,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:49,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:49,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-03 17:01:49,814 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:49,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:49,814 INFO L85 PathProgramCache]: Analyzing trace with hash -779179066, now seen corresponding path program 166 times [2022-03-03 17:01:49,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:49,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288105338] [2022-03-03 17:01:49,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:49,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:49,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:49,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288105338] [2022-03-03 17:01:49,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288105338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:49,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:49,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:49,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141002039] [2022-03-03 17:01:49,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:49,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:49,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:49,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:49,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:49,932 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:50,454 INFO L93 Difference]: Finished difference Result 11758 states and 31692 transitions. [2022-03-03 17:01:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:50,454 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:50,473 INFO L225 Difference]: With dead ends: 11758 [2022-03-03 17:01:50,473 INFO L226 Difference]: Without dead ends: 11273 [2022-03-03 17:01:50,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:50,474 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 221 mSDsluCounter, 3206 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 3449 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:50,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 3449 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:50,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11273 states. [2022-03-03 17:01:50,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11273 to 8992. [2022-03-03 17:01:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:01:50,644 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:01:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:50,644 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:01:50,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:01:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:50,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:50,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:50,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-03 17:01:50,658 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash -97558412, now seen corresponding path program 167 times [2022-03-03 17:01:50,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:50,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711476335] [2022-03-03 17:01:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:50,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:50,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:50,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711476335] [2022-03-03 17:01:50,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711476335] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:50,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:50,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:50,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817929279] [2022-03-03 17:01:50,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:50,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:50,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:50,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:50,769 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:51,241 INFO L93 Difference]: Finished difference Result 11716 states and 31581 transitions. [2022-03-03 17:01:51,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:51,242 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:51,260 INFO L225 Difference]: With dead ends: 11716 [2022-03-03 17:01:51,260 INFO L226 Difference]: Without dead ends: 11230 [2022-03-03 17:01:51,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:51,261 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 218 mSDsluCounter, 2852 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3110 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:51,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3110 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:51,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-03-03 17:01:51,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8988. [2022-03-03 17:01:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:01:51,421 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:01:51,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:51,421 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:01:51,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:01:51,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:51,435 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:51,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:51,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-03 17:01:51,436 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:51,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:51,436 INFO L85 PathProgramCache]: Analyzing trace with hash 603129144, now seen corresponding path program 168 times [2022-03-03 17:01:51,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:51,436 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331047326] [2022-03-03 17:01:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:51,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:51,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:51,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:51,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331047326] [2022-03-03 17:01:51,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331047326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:51,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:51,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:51,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725534996] [2022-03-03 17:01:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:51,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:51,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:51,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:51,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:51,550 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:52,144 INFO L93 Difference]: Finished difference Result 11844 states and 31913 transitions. [2022-03-03 17:01:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:52,144 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:52,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:52,164 INFO L225 Difference]: With dead ends: 11844 [2022-03-03 17:01:52,165 INFO L226 Difference]: Without dead ends: 11318 [2022-03-03 17:01:52,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:01:52,165 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 287 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:52,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 3170 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:52,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-03-03 17:01:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8984. [2022-03-03 17:01:52,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:01:52,323 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:01:52,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:52,323 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:01:52,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,323 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:01:52,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:52,334 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:52,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:52,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-03 17:01:52,335 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:52,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:52,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1680817172, now seen corresponding path program 169 times [2022-03-03 17:01:52,335 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:52,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511027596] [2022-03-03 17:01:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:52,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:52,444 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:52,444 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511027596] [2022-03-03 17:01:52,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511027596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:52,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:52,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:52,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206916084] [2022-03-03 17:01:52,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:52,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:52,445 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:52,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:52,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:52,445 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:53,060 INFO L93 Difference]: Finished difference Result 11846 states and 31905 transitions. [2022-03-03 17:01:53,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:01:53,061 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:53,079 INFO L225 Difference]: With dead ends: 11846 [2022-03-03 17:01:53,079 INFO L226 Difference]: Without dead ends: 11318 [2022-03-03 17:01:53,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:01:53,080 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 274 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:53,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 3547 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11318 states. [2022-03-03 17:01:53,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11318 to 8988. [2022-03-03 17:01:53,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:01:53,241 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:01:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:53,242 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:01:53,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,242 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:01:53,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:53,254 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:53,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:53,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-03 17:01:53,254 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:53,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:53,255 INFO L85 PathProgramCache]: Analyzing trace with hash -827215170, now seen corresponding path program 170 times [2022-03-03 17:01:53,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:53,255 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099323575] [2022-03-03 17:01:53,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:53,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:53,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:53,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:53,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099323575] [2022-03-03 17:01:53,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099323575] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:53,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:53,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:53,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991221777] [2022-03-03 17:01:53,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:53,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:53,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:53,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:53,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:53,363 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:53,847 INFO L93 Difference]: Finished difference Result 11698 states and 31519 transitions. [2022-03-03 17:01:53,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:53,847 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:53,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:53,867 INFO L225 Difference]: With dead ends: 11698 [2022-03-03 17:01:53,867 INFO L226 Difference]: Without dead ends: 11213 [2022-03-03 17:01:53,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:53,868 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 218 mSDsluCounter, 2512 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:53,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2770 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11213 states. [2022-03-03 17:01:53,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11213 to 8992. [2022-03-03 17:01:54,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-03 17:01:54,023 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-03 17:01:54,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:54,023 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-03 17:01:54,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-03 17:01:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:54,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:54,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:54,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-03 17:01:54,035 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:54,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:54,035 INFO L85 PathProgramCache]: Analyzing trace with hash -145594516, now seen corresponding path program 171 times [2022-03-03 17:01:54,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:54,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17765952] [2022-03-03 17:01:54,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:54,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:54,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:54,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17765952] [2022-03-03 17:01:54,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17765952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:54,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:54,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:54,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847283850] [2022-03-03 17:01:54,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:54,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:54,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:54,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:54,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:54,168 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:54,641 INFO L93 Difference]: Finished difference Result 11616 states and 31298 transitions. [2022-03-03 17:01:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:54,641 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:54,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:54,660 INFO L225 Difference]: With dead ends: 11616 [2022-03-03 17:01:54,660 INFO L226 Difference]: Without dead ends: 11118 [2022-03-03 17:01:54,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:54,660 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 202 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:54,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 3258 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:54,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-03-03 17:01:54,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 8976. [2022-03-03 17:01:54,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-03-03 17:01:54,819 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-03-03 17:01:54,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:54,819 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-03-03 17:01:54,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,819 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-03-03 17:01:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:54,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:54,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:54,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-03 17:01:54,832 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:54,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:54,832 INFO L85 PathProgramCache]: Analyzing trace with hash 302765246, now seen corresponding path program 172 times [2022-03-03 17:01:54,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:54,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325190348] [2022-03-03 17:01:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:54,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:54,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:54,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325190348] [2022-03-03 17:01:54,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325190348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:54,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:54,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:54,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923970426] [2022-03-03 17:01:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:54,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:54,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:54,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:54,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:54,946 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:55,437 INFO L93 Difference]: Finished difference Result 11794 states and 31791 transitions. [2022-03-03 17:01:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:55,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:55,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:55,499 INFO L225 Difference]: With dead ends: 11794 [2022-03-03 17:01:55,499 INFO L226 Difference]: Without dead ends: 11309 [2022-03-03 17:01:55,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:55,499 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 218 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 3188 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:55,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 3188 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-03-03 17:01:55,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-03-03 17:01:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:01:55,637 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:01:55,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:55,637 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:01:55,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:01:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:55,650 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:55,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:55,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-03 17:01:55,650 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:55,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:55,651 INFO L85 PathProgramCache]: Analyzing trace with hash 984385900, now seen corresponding path program 173 times [2022-03-03 17:01:55,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:55,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118659743] [2022-03-03 17:01:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:55,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:55,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:55,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118659743] [2022-03-03 17:01:55,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118659743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:55,757 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:55,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:55,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400535346] [2022-03-03 17:01:55,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:55,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:55,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:55,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:55,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:55,758 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:56,230 INFO L93 Difference]: Finished difference Result 11752 states and 31680 transitions. [2022-03-03 17:01:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:56,230 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:56,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:56,249 INFO L225 Difference]: With dead ends: 11752 [2022-03-03 17:01:56,249 INFO L226 Difference]: Without dead ends: 11266 [2022-03-03 17:01:56,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:56,249 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 213 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:56,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3108 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-03-03 17:01:56,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-03-03 17:01:56,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:01:56,400 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:01:56,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:56,400 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:01:56,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:01:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:56,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:56,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:56,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-03 17:01:56,413 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:56,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:56,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1685073456, now seen corresponding path program 174 times [2022-03-03 17:01:56,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:56,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587899347] [2022-03-03 17:01:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:56,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:56,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:56,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587899347] [2022-03-03 17:01:56,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587899347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:56,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:56,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:56,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529622155] [2022-03-03 17:01:56,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:56,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:56,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:56,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:56,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:56,523 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:57,119 INFO L93 Difference]: Finished difference Result 11860 states and 31957 transitions. [2022-03-03 17:01:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:01:57,120 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:57,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:57,139 INFO L225 Difference]: With dead ends: 11860 [2022-03-03 17:01:57,139 INFO L226 Difference]: Without dead ends: 11334 [2022-03-03 17:01:57,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:01:57,139 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 275 mSDsluCounter, 2989 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:57,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3250 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:57,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-03 17:01:57,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8984. [2022-03-03 17:01:57,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:01:57,301 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:01:57,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:57,301 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:01:57,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:01:57,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:57,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:57,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:57,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-03 17:01:57,313 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:57,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1532205812, now seen corresponding path program 175 times [2022-03-03 17:01:57,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:57,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853956537] [2022-03-03 17:01:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:57,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:57,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853956537] [2022-03-03 17:01:57,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853956537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:57,431 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:57,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:57,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044909319] [2022-03-03 17:01:57,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:57,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:57,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:57,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:57,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:57,431 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:58,040 INFO L93 Difference]: Finished difference Result 11958 states and 32213 transitions. [2022-03-03 17:01:58,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:01:58,040 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:58,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:58,059 INFO L225 Difference]: With dead ends: 11958 [2022-03-03 17:01:58,060 INFO L226 Difference]: Without dead ends: 11430 [2022-03-03 17:01:58,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:01:58,060 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 281 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:58,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 3406 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11430 states. [2022-03-03 17:01:58,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11430 to 8988. [2022-03-03 17:01:58,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:01:58,211 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:01:58,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:58,211 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:01:58,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,211 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:01:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:58,223 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:58,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:58,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-03 17:01:58,223 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:58,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:58,224 INFO L85 PathProgramCache]: Analyzing trace with hash 254729142, now seen corresponding path program 176 times [2022-03-03 17:01:58,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:58,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647418562] [2022-03-03 17:01:58,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:58,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:58,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:58,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:58,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647418562] [2022-03-03 17:01:58,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647418562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:58,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:58,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:58,334 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496970954] [2022-03-03 17:01:58,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:58,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:58,334 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:58,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:58,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:58,341 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:58,840 INFO L93 Difference]: Finished difference Result 11794 states and 31783 transitions. [2022-03-03 17:01:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:01:58,840 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:58,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:58,860 INFO L225 Difference]: With dead ends: 11794 [2022-03-03 17:01:58,860 INFO L226 Difference]: Without dead ends: 11309 [2022-03-03 17:01:58,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:01:58,861 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 222 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:58,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2781 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:58,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11309 states. [2022-03-03 17:01:58,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11309 to 8992. [2022-03-03 17:01:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-03 17:01:59,016 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-03 17:01:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:59,016 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-03 17:01:59,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-03 17:01:59,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:59,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:59,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:59,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-03 17:01:59,029 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash 936349796, now seen corresponding path program 177 times [2022-03-03 17:01:59,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:59,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270369504] [2022-03-03 17:01:59,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:59,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:59,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:59,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270369504] [2022-03-03 17:01:59,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270369504] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:59,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:59,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:59,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927951957] [2022-03-03 17:01:59,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:59,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:59,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:59,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:59,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:59,150 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:59,616 INFO L93 Difference]: Finished difference Result 11728 states and 31606 transitions. [2022-03-03 17:01:59,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:01:59,616 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:01:59,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:59,634 INFO L225 Difference]: With dead ends: 11728 [2022-03-03 17:01:59,634 INFO L226 Difference]: Without dead ends: 11234 [2022-03-03 17:01:59,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1017, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:01:59,635 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 210 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:59,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3267 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:59,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11234 states. [2022-03-03 17:01:59,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11234 to 8980. [2022-03-03 17:01:59,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-03 17:01:59,784 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-03 17:01:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:59,784 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-03 17:01:59,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-03 17:01:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:01:59,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:59,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:59,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-03 17:01:59,796 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:59,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1259283648, now seen corresponding path program 178 times [2022-03-03 17:01:59,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:59,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893479595] [2022-03-03 17:01:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:59,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:59,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:59,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:59,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893479595] [2022-03-03 17:01:59,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893479595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:59,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:59,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:01:59,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632638015] [2022-03-03 17:01:59,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:59,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:01:59,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:59,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:01:59,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:01:59,903 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:00,598 INFO L93 Difference]: Finished difference Result 11979 states and 32252 transitions. [2022-03-03 17:02:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:02:00,598 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:00,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:00,617 INFO L225 Difference]: With dead ends: 11979 [2022-03-03 17:02:00,617 INFO L226 Difference]: Without dead ends: 11408 [2022-03-03 17:02:00,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:02:00,618 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 346 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:00,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 3322 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:00,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11408 states. [2022-03-03 17:02:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11408 to 8984. [2022-03-03 17:02:00,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-03-03 17:02:00,763 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-03-03 17:02:00,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:00,764 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-03-03 17:02:00,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,764 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-03-03 17:02:00,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:00,775 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:00,775 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:00,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-03 17:02:00,775 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:00,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:00,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1246121194, now seen corresponding path program 179 times [2022-03-03 17:02:00,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:00,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892442723] [2022-03-03 17:02:00,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:00,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:00,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:00,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:00,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892442723] [2022-03-03 17:02:00,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892442723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:00,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:00,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:00,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048864376] [2022-03-03 17:02:00,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:00,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:00,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:00,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:00,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:00,885 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:01,549 INFO L93 Difference]: Finished difference Result 11862 states and 31945 transitions. [2022-03-03 17:02:01,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:01,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:01,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:01,568 INFO L225 Difference]: With dead ends: 11862 [2022-03-03 17:02:01,569 INFO L226 Difference]: Without dead ends: 11334 [2022-03-03 17:02:01,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:02:01,569 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 279 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:01,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 3565 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:01,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-03 17:02:01,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8988. [2022-03-03 17:02:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-03-03 17:02:01,730 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-03-03 17:02:01,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:01,731 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-03-03 17:02:01,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,731 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-03-03 17:02:01,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:01,743 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:01,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:01,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-03 17:02:01,743 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:01,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:01,743 INFO L85 PathProgramCache]: Analyzing trace with hash 540813760, now seen corresponding path program 180 times [2022-03-03 17:02:01,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:01,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133643059] [2022-03-03 17:02:01,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:01,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:01,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:01,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133643059] [2022-03-03 17:02:01,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133643059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:01,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:01,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:01,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814228347] [2022-03-03 17:02:01,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:01,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:01,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:01,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:01,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:01,857 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:02,364 INFO L93 Difference]: Finished difference Result 11714 states and 31559 transitions. [2022-03-03 17:02:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:02,364 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:02,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:02,383 INFO L225 Difference]: With dead ends: 11714 [2022-03-03 17:02:02,384 INFO L226 Difference]: Without dead ends: 11229 [2022-03-03 17:02:02,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:02,384 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 222 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:02,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3453 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2022-03-03 17:02:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 8992. [2022-03-03 17:02:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-03-03 17:02:02,536 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-03-03 17:02:02,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:02,537 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-03-03 17:02:02,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-03-03 17:02:02,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:02,549 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:02,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:02,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-03 17:02:02,549 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:02,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:02,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1222434414, now seen corresponding path program 181 times [2022-03-03 17:02:02,549 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:02,549 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247122420] [2022-03-03 17:02:02,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:02,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:02,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:02,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247122420] [2022-03-03 17:02:02,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247122420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:02,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:02,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:02,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138149413] [2022-03-03 17:02:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:02,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:02,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:02,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:02,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:02,655 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:03,103 INFO L93 Difference]: Finished difference Result 11616 states and 31294 transitions. [2022-03-03 17:02:03,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:02:03,104 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:03,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:03,123 INFO L225 Difference]: With dead ends: 11616 [2022-03-03 17:02:03,123 INFO L226 Difference]: Without dead ends: 11114 [2022-03-03 17:02:03,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:02:03,123 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 201 mSDsluCounter, 2997 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:03,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3246 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11114 states. [2022-03-03 17:02:03,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11114 to 8972. [2022-03-03 17:02:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-03-03 17:02:03,286 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-03-03 17:02:03,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:03,286 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-03-03 17:02:03,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-03-03 17:02:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:03,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:03,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:03,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-03 17:02:03,298 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:03,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash -690474580, now seen corresponding path program 182 times [2022-03-03 17:02:03,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:03,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267534264] [2022-03-03 17:02:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:03,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:03,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:03,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267534264] [2022-03-03 17:02:03,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267534264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:03,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:03,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:03,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986581476] [2022-03-03 17:02:03,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:03,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:03,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:03,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:03,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:03,407 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:03,862 INFO L93 Difference]: Finished difference Result 11622 states and 31318 transitions. [2022-03-03 17:02:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:03,862 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:03,881 INFO L225 Difference]: With dead ends: 11622 [2022-03-03 17:02:03,881 INFO L226 Difference]: Without dead ends: 11137 [2022-03-03 17:02:03,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:02:03,881 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 219 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:03,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2869 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-03-03 17:02:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-03-03 17:02:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:02:04,024 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:02:04,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:04,024 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:02:04,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,025 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:02:04,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:04,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:04,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:04,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-03 17:02:04,036 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:04,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:04,037 INFO L85 PathProgramCache]: Analyzing trace with hash -8853926, now seen corresponding path program 183 times [2022-03-03 17:02:04,037 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:04,037 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700710182] [2022-03-03 17:02:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:04,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:04,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:04,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700710182] [2022-03-03 17:02:04,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700710182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:04,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:04,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:04,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982021570] [2022-03-03 17:02:04,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:04,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:04,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:04,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:04,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:04,141 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:04,619 INFO L93 Difference]: Finished difference Result 11580 states and 31207 transitions. [2022-03-03 17:02:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:04,619 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:04,638 INFO L225 Difference]: With dead ends: 11580 [2022-03-03 17:02:04,638 INFO L226 Difference]: Without dead ends: 11094 [2022-03-03 17:02:04,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:04,639 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 203 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 3454 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:04,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 3454 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:04,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11094 states. [2022-03-03 17:02:04,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11094 to 8988. [2022-03-03 17:02:04,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:02:04,791 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:02:04,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:04,791 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:02:04,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,791 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:02:04,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:04,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:04,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:04,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-03 17:02:04,804 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:04,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:04,804 INFO L85 PathProgramCache]: Analyzing trace with hash 691833630, now seen corresponding path program 184 times [2022-03-03 17:02:04,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:04,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704755361] [2022-03-03 17:02:04,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:04,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:04,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:04,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:04,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704755361] [2022-03-03 17:02:04,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704755361] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:04,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:04,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:04,918 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959019475] [2022-03-03 17:02:04,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:04,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:04,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:04,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:04,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:04,918 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:05,500 INFO L93 Difference]: Finished difference Result 11688 states and 31484 transitions. [2022-03-03 17:02:05,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:02:05,501 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:05,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:05,521 INFO L225 Difference]: With dead ends: 11688 [2022-03-03 17:02:05,521 INFO L226 Difference]: Without dead ends: 11162 [2022-03-03 17:02:05,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 17:02:05,523 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 274 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:05,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [274 Valid, 2978 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:05,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11162 states. [2022-03-03 17:02:05,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11162 to 8984. [2022-03-03 17:02:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:02:05,685 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:02:05,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:05,685 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:02:05,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:02:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:05,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:05,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:05,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-03 17:02:05,697 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1769521658, now seen corresponding path program 185 times [2022-03-03 17:02:05,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:05,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500159519] [2022-03-03 17:02:05,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:05,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:05,806 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:05,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500159519] [2022-03-03 17:02:05,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500159519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:05,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:05,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:05,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435717906] [2022-03-03 17:02:05,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:05,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:05,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:05,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:05,808 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:06,375 INFO L93 Difference]: Finished difference Result 11786 states and 31740 transitions. [2022-03-03 17:02:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:02:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:06,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:06,394 INFO L225 Difference]: With dead ends: 11786 [2022-03-03 17:02:06,394 INFO L226 Difference]: Without dead ends: 11258 [2022-03-03 17:02:06,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:06,395 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 288 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:06,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 3091 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:06,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-03-03 17:02:06,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8988. [2022-03-03 17:02:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:02:06,549 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:02:06,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:06,549 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:02:06,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:02:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:06,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:06,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:06,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-03 17:02:06,561 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash -738510684, now seen corresponding path program 186 times [2022-03-03 17:02:06,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:06,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316003525] [2022-03-03 17:02:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:06,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:06,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:06,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316003525] [2022-03-03 17:02:06,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316003525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:06,686 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:06,686 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:06,686 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183918830] [2022-03-03 17:02:06,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:06,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:06,686 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:06,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:06,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:06,687 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:07,213 INFO L93 Difference]: Finished difference Result 11622 states and 31310 transitions. [2022-03-03 17:02:07,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:07,213 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:07,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:07,232 INFO L225 Difference]: With dead ends: 11622 [2022-03-03 17:02:07,233 INFO L226 Difference]: Without dead ends: 11137 [2022-03-03 17:02:07,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1075, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:07,233 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 226 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:07,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2998 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:07,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11137 states. [2022-03-03 17:02:07,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11137 to 8992. [2022-03-03 17:02:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-03 17:02:07,412 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-03 17:02:07,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:07,413 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-03 17:02:07,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,413 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-03 17:02:07,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:07,425 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:07,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:07,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-03 17:02:07,425 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:07,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash -56890030, now seen corresponding path program 187 times [2022-03-03 17:02:07,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:07,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865838722] [2022-03-03 17:02:07,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:07,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:07,531 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:07,531 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865838722] [2022-03-03 17:02:07,531 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865838722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:07,531 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:07,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:07,531 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222123703] [2022-03-03 17:02:07,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:07,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:07,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:07,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:07,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:07,532 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:07,973 INFO L93 Difference]: Finished difference Result 11556 states and 31133 transitions. [2022-03-03 17:02:07,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:07,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:07,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:07,992 INFO L225 Difference]: With dead ends: 11556 [2022-03-03 17:02:07,992 INFO L226 Difference]: Without dead ends: 11062 [2022-03-03 17:02:07,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:02:07,993 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 205 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:07,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 3275 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:08,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11062 states. [2022-03-03 17:02:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11062 to 8980. [2022-03-03 17:02:08,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-03 17:02:08,151 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-03 17:02:08,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:08,151 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-03 17:02:08,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,151 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-03 17:02:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:08,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:08,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:08,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-03 17:02:08,164 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:08,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:08,165 INFO L85 PathProgramCache]: Analyzing trace with hash 266043822, now seen corresponding path program 188 times [2022-03-03 17:02:08,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:08,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597431309] [2022-03-03 17:02:08,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:08,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:08,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:08,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597431309] [2022-03-03 17:02:08,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597431309] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:08,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:08,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:08,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256804437] [2022-03-03 17:02:08,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:08,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:08,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:08,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:08,276 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:08,966 INFO L93 Difference]: Finished difference Result 11919 states and 32087 transitions. [2022-03-03 17:02:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:02:08,966 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:08,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:08,985 INFO L225 Difference]: With dead ends: 11919 [2022-03-03 17:02:08,985 INFO L226 Difference]: Without dead ends: 11348 [2022-03-03 17:02:08,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:02:08,986 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 335 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:08,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 3667 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11348 states. [2022-03-03 17:02:09,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11348 to 8984. [2022-03-03 17:02:09,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-03-03 17:02:09,147 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-03-03 17:02:09,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:09,147 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-03-03 17:02:09,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,147 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-03-03 17:02:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:09,161 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:09,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:09,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-03 17:02:09,161 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:09,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2055606276, now seen corresponding path program 189 times [2022-03-03 17:02:09,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:09,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000576981] [2022-03-03 17:02:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:09,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:09,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:09,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000576981] [2022-03-03 17:02:09,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000576981] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:09,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:09,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:09,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777023894] [2022-03-03 17:02:09,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:09,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:09,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:09,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:09,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:09,275 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:09,869 INFO L93 Difference]: Finished difference Result 11794 states and 31758 transitions. [2022-03-03 17:02:09,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:09,869 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:09,888 INFO L225 Difference]: With dead ends: 11794 [2022-03-03 17:02:09,888 INFO L226 Difference]: Without dead ends: 11266 [2022-03-03 17:02:09,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:02:09,889 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 282 mSDsluCounter, 2851 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:09,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3103 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:09,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11266 states. [2022-03-03 17:02:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11266 to 8988. [2022-03-03 17:02:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6998998553466116) internal successors, (24264), 8987 states have internal predecessors, (24264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24264 transitions. [2022-03-03 17:02:10,058 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24264 transitions. Word has length 109 [2022-03-03 17:02:10,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:10,058 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24264 transitions. [2022-03-03 17:02:10,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,058 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24264 transitions. [2022-03-03 17:02:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:10,071 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:10,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:10,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-03 17:02:10,072 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:10,072 INFO L85 PathProgramCache]: Analyzing trace with hash -452426066, now seen corresponding path program 190 times [2022-03-03 17:02:10,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:10,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130702166] [2022-03-03 17:02:10,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:10,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:10,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:10,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130702166] [2022-03-03 17:02:10,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130702166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:10,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:10,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:10,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767126426] [2022-03-03 17:02:10,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:10,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:10,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:10,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:10,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:10,187 INFO L87 Difference]: Start difference. First operand 8988 states and 24264 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:10,674 INFO L93 Difference]: Finished difference Result 11630 states and 31328 transitions. [2022-03-03 17:02:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:10,674 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:10,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:10,694 INFO L225 Difference]: With dead ends: 11630 [2022-03-03 17:02:10,694 INFO L226 Difference]: Without dead ends: 11145 [2022-03-03 17:02:10,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:10,694 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 216 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:10,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 3046 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:10,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11145 states. [2022-03-03 17:02:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11145 to 8992. [2022-03-03 17:02:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6994772550328108) internal successors, (24271), 8991 states have internal predecessors, (24271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24271 transitions. [2022-03-03 17:02:10,834 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24271 transitions. Word has length 109 [2022-03-03 17:02:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:10,834 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24271 transitions. [2022-03-03 17:02:10,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24271 transitions. [2022-03-03 17:02:10,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:10,845 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:10,845 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:10,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-03 17:02:10,846 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:10,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:10,846 INFO L85 PathProgramCache]: Analyzing trace with hash 229194588, now seen corresponding path program 191 times [2022-03-03 17:02:10,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:10,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245618302] [2022-03-03 17:02:10,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:10,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:10,952 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:10,952 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245618302] [2022-03-03 17:02:10,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245618302] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:10,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:10,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:10,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598538810] [2022-03-03 17:02:10,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:10,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:10,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:10,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:10,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:10,953 INFO L87 Difference]: Start difference. First operand 8992 states and 24271 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:11,388 INFO L93 Difference]: Finished difference Result 11556 states and 31129 transitions. [2022-03-03 17:02:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:02:11,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:11,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:11,407 INFO L225 Difference]: With dead ends: 11556 [2022-03-03 17:02:11,407 INFO L226 Difference]: Without dead ends: 11058 [2022-03-03 17:02:11,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:02:11,407 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 201 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:11,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 3271 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:11,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11058 states. [2022-03-03 17:02:11,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11058 to 8976. [2022-03-03 17:02:11,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.700724233983287) internal successors, (24239), 8975 states have internal predecessors, (24239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24239 transitions. [2022-03-03 17:02:11,554 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24239 transitions. Word has length 109 [2022-03-03 17:02:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:11,554 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24239 transitions. [2022-03-03 17:02:11,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24239 transitions. [2022-03-03 17:02:11,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:11,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:11,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:11,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-03 17:02:11,566 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:11,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash 903686232, now seen corresponding path program 192 times [2022-03-03 17:02:11,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:11,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713518336] [2022-03-03 17:02:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:11,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:11,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:11,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:11,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713518336] [2022-03-03 17:02:11,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713518336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:11,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:11,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:11,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781322066] [2022-03-03 17:02:11,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:11,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:11,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:11,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:11,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:11,677 INFO L87 Difference]: Start difference. First operand 8976 states and 24239 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:12,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:12,487 INFO L93 Difference]: Finished difference Result 11747 states and 31589 transitions. [2022-03-03 17:02:12,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:02:12,488 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:12,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:12,504 INFO L225 Difference]: With dead ends: 11747 [2022-03-03 17:02:12,504 INFO L226 Difference]: Without dead ends: 11133 [2022-03-03 17:02:12,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=793, Invalid=2399, Unknown=0, NotChecked=0, Total=3192 [2022-03-03 17:02:12,505 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 405 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:12,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 3512 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:12,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11133 states. [2022-03-03 17:02:12,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11133 to 8980. [2022-03-03 17:02:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.700300701637153) internal successors, (24246), 8979 states have internal predecessors, (24246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:12,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24246 transitions. [2022-03-03 17:02:12,629 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24246 transitions. Word has length 109 [2022-03-03 17:02:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:12,629 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24246 transitions. [2022-03-03 17:02:12,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24246 transitions. [2022-03-03 17:02:12,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:12,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:12,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:12,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-03 17:02:12,640 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:12,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:12,641 INFO L85 PathProgramCache]: Analyzing trace with hash -153609922, now seen corresponding path program 193 times [2022-03-03 17:02:12,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:12,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238023213] [2022-03-03 17:02:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:12,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:12,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:12,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:12,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238023213] [2022-03-03 17:02:12,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238023213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:12,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:12,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:12,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595839105] [2022-03-03 17:02:12,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:12,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:12,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:12,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:12,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:12,745 INFO L87 Difference]: Start difference. First operand 8980 states and 24246 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:13,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:13,453 INFO L93 Difference]: Finished difference Result 11783 states and 31709 transitions. [2022-03-03 17:02:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:02:13,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:13,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:13,470 INFO L225 Difference]: With dead ends: 11783 [2022-03-03 17:02:13,470 INFO L226 Difference]: Without dead ends: 11212 [2022-03-03 17:02:13,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 807 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:02:13,470 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 352 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:13,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 3421 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2022-03-03 17:02:13,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 8984. [2022-03-03 17:02:13,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.699877546476678) internal successors, (24253), 8983 states have internal predecessors, (24253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24253 transitions. [2022-03-03 17:02:13,617 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24253 transitions. Word has length 109 [2022-03-03 17:02:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:13,617 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24253 transitions. [2022-03-03 17:02:13,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24253 transitions. [2022-03-03 17:02:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:13,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:13,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:13,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-03 17:02:13,628 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:13,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:13,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1635952532, now seen corresponding path program 194 times [2022-03-03 17:02:13,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:13,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152662904] [2022-03-03 17:02:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:13,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:13,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:13,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152662904] [2022-03-03 17:02:13,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152662904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:13,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:13,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:13,746 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368937068] [2022-03-03 17:02:13,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:13,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:13,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:13,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:13,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:13,746 INFO L87 Difference]: Start difference. First operand 8984 states and 24253 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:14,352 INFO L93 Difference]: Finished difference Result 11658 states and 31380 transitions. [2022-03-03 17:02:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:14,352 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:14,370 INFO L225 Difference]: With dead ends: 11658 [2022-03-03 17:02:14,370 INFO L226 Difference]: Without dead ends: 11130 [2022-03-03 17:02:14,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:14,371 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 270 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:14,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2875 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11130 states. [2022-03-03 17:02:14,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11130 to 8988. [2022-03-03 17:02:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.6994547679982195) internal successors, (24260), 8987 states have internal predecessors, (24260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24260 transitions. [2022-03-03 17:02:14,532 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24260 transitions. Word has length 109 [2022-03-03 17:02:14,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:14,532 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24260 transitions. [2022-03-03 17:02:14,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24260 transitions. [2022-03-03 17:02:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:14,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:14,545 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:14,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-03 17:02:14,545 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:14,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:14,545 INFO L85 PathProgramCache]: Analyzing trace with hash -872079810, now seen corresponding path program 195 times [2022-03-03 17:02:14,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:14,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654458276] [2022-03-03 17:02:14,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:14,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:14,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:14,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:14,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654458276] [2022-03-03 17:02:14,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654458276] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:14,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:14,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:14,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860697715] [2022-03-03 17:02:14,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:14,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:14,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:14,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:14,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:14,654 INFO L87 Difference]: Start difference. First operand 8988 states and 24260 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:15,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:15,120 INFO L93 Difference]: Finished difference Result 11494 states and 30950 transitions. [2022-03-03 17:02:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:15,120 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:15,137 INFO L225 Difference]: With dead ends: 11494 [2022-03-03 17:02:15,137 INFO L226 Difference]: Without dead ends: 11009 [2022-03-03 17:02:15,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1084, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:15,138 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 210 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:15,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 3471 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:15,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11009 states. [2022-03-03 17:02:15,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11009 to 8992. [2022-03-03 17:02:15,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.6990323656990323) internal successors, (24267), 8991 states have internal predecessors, (24267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:15,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24267 transitions. [2022-03-03 17:02:15,273 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24267 transitions. Word has length 109 [2022-03-03 17:02:15,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:15,273 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24267 transitions. [2022-03-03 17:02:15,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:15,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24267 transitions. [2022-03-03 17:02:15,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:15,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:15,285 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:15,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-03 17:02:15,286 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:15,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash -190459156, now seen corresponding path program 196 times [2022-03-03 17:02:15,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:15,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176051836] [2022-03-03 17:02:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:15,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:15,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:15,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176051836] [2022-03-03 17:02:15,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176051836] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:15,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:15,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:15,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071911544] [2022-03-03 17:02:15,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:15,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:15,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:15,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:15,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:15,389 INFO L87 Difference]: Start difference. First operand 8992 states and 24267 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:15,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:15,771 INFO L93 Difference]: Finished difference Result 11420 states and 30751 transitions. [2022-03-03 17:02:15,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:02:15,771 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:15,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:15,792 INFO L225 Difference]: With dead ends: 11420 [2022-03-03 17:02:15,792 INFO L226 Difference]: Without dead ends: 10910 [2022-03-03 17:02:15,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:02:15,793 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 200 mSDsluCounter, 2667 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:15,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2916 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2022-03-03 17:02:15,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 8964. [2022-03-03 17:02:15,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8964 states, 8963 states have (on average 2.7015508200379337) internal successors, (24214), 8963 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8964 states to 8964 states and 24214 transitions. [2022-03-03 17:02:15,940 INFO L78 Accepts]: Start accepts. Automaton has 8964 states and 24214 transitions. Word has length 109 [2022-03-03 17:02:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:15,941 INFO L470 AbstractCegarLoop]: Abstraction has 8964 states and 24214 transitions. [2022-03-03 17:02:15,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 8964 states and 24214 transitions. [2022-03-03 17:02:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:15,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:15,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:15,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-03 17:02:15,953 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:15,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:15,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1602299128, now seen corresponding path program 197 times [2022-03-03 17:02:15,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:15,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765765352] [2022-03-03 17:02:15,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:15,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:16,065 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:16,065 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765765352] [2022-03-03 17:02:16,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765765352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:16,065 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:16,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:16,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266705330] [2022-03-03 17:02:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:16,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:16,066 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:16,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:16,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:16,066 INFO L87 Difference]: Start difference. First operand 8964 states and 24214 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:16,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:16,546 INFO L93 Difference]: Finished difference Result 11530 states and 31069 transitions. [2022-03-03 17:02:16,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:02:16,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:16,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:16,564 INFO L225 Difference]: With dead ends: 11530 [2022-03-03 17:02:16,565 INFO L226 Difference]: Without dead ends: 11045 [2022-03-03 17:02:16,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:02:16,565 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 272 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:16,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3413 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:16,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11045 states. [2022-03-03 17:02:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11045 to 8996. [2022-03-03 17:02:16,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.7012784880489162) internal successors, (24298), 8995 states have internal predecessors, (24298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24298 transitions. [2022-03-03 17:02:16,713 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24298 transitions. Word has length 109 [2022-03-03 17:02:16,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:16,713 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24298 transitions. [2022-03-03 17:02:16,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:16,713 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24298 transitions. [2022-03-03 17:02:16,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:16,724 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:16,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:16,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-03 17:02:16,724 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:16,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:16,725 INFO L85 PathProgramCache]: Analyzing trace with hash -920678474, now seen corresponding path program 198 times [2022-03-03 17:02:16,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:16,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469334658] [2022-03-03 17:02:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:16,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:16,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:16,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469334658] [2022-03-03 17:02:16,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469334658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:16,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:16,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:16,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006706236] [2022-03-03 17:02:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:16,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:16,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:16,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:16,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:16,835 INFO L87 Difference]: Start difference. First operand 8996 states and 24298 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:17,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:17,342 INFO L93 Difference]: Finished difference Result 11496 states and 30980 transitions. [2022-03-03 17:02:17,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:17,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:17,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:17,360 INFO L225 Difference]: With dead ends: 11496 [2022-03-03 17:02:17,360 INFO L226 Difference]: Without dead ends: 11010 [2022-03-03 17:02:17,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:17,361 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 273 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:17,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 3218 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:17,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-03 17:02:17,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8992. [2022-03-03 17:02:17,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7012568123679235) internal successors, (24287), 8991 states have internal predecessors, (24287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24287 transitions. [2022-03-03 17:02:17,507 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24287 transitions. Word has length 109 [2022-03-03 17:02:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:17,507 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24287 transitions. [2022-03-03 17:02:17,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:17,507 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24287 transitions. [2022-03-03 17:02:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:17,519 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:17,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:17,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-03 17:02:17,519 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:17,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:17,519 INFO L85 PathProgramCache]: Analyzing trace with hash -219990918, now seen corresponding path program 199 times [2022-03-03 17:02:17,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:17,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528083794] [2022-03-03 17:02:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:17,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:17,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528083794] [2022-03-03 17:02:17,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528083794] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:17,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:17,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:17,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889040472] [2022-03-03 17:02:17,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:17,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:17,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:17,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:17,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:17,635 INFO L87 Difference]: Start difference. First operand 8992 states and 24287 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:18,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:18,284 INFO L93 Difference]: Finished difference Result 11532 states and 31075 transitions. [2022-03-03 17:02:18,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:18,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:18,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:18,302 INFO L225 Difference]: With dead ends: 11532 [2022-03-03 17:02:18,302 INFO L226 Difference]: Without dead ends: 11006 [2022-03-03 17:02:18,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=482, Invalid=1588, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:18,303 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 324 mSDsluCounter, 2951 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:18,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 3233 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:18,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11006 states. [2022-03-03 17:02:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11006 to 8988. [2022-03-03 17:02:18,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7012351173917883) internal successors, (24276), 8987 states have internal predecessors, (24276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24276 transitions. [2022-03-03 17:02:18,439 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24276 transitions. Word has length 109 [2022-03-03 17:02:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:18,439 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24276 transitions. [2022-03-03 17:02:18,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24276 transitions. [2022-03-03 17:02:18,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:18,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:18,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:18,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-03 17:02:18,451 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1930899914, now seen corresponding path program 200 times [2022-03-03 17:02:18,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:18,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60450777] [2022-03-03 17:02:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:18,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:18,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:18,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60450777] [2022-03-03 17:02:18,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60450777] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:18,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:18,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:18,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401469044] [2022-03-03 17:02:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:18,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:18,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:18,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:18,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:18,558 INFO L87 Difference]: Start difference. First operand 8988 states and 24276 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:19,222 INFO L93 Difference]: Finished difference Result 11704 states and 31520 transitions. [2022-03-03 17:02:19,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:02:19,222 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:19,237 INFO L225 Difference]: With dead ends: 11704 [2022-03-03 17:02:19,238 INFO L226 Difference]: Without dead ends: 11138 [2022-03-03 17:02:19,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:02:19,238 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 401 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 3785 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:19,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 3785 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11138 states. [2022-03-03 17:02:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11138 to 8984. [2022-03-03 17:02:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7012134030947346) internal successors, (24265), 8983 states have internal predecessors, (24265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24265 transitions. [2022-03-03 17:02:19,370 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24265 transitions. Word has length 109 [2022-03-03 17:02:19,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:19,370 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24265 transitions. [2022-03-03 17:02:19,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24265 transitions. [2022-03-03 17:02:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:19,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:19,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:19,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-03 17:02:19,382 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:19,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:19,382 INFO L85 PathProgramCache]: Analyzing trace with hash -571654898, now seen corresponding path program 201 times [2022-03-03 17:02:19,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:19,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207330173] [2022-03-03 17:02:19,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:19,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:19,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207330173] [2022-03-03 17:02:19,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207330173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:19,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:19,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:19,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849828490] [2022-03-03 17:02:19,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:19,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:19,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:19,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:19,491 INFO L87 Difference]: Start difference. First operand 8984 states and 24265 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:19,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:19,959 INFO L93 Difference]: Finished difference Result 11606 states and 31274 transitions. [2022-03-03 17:02:19,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:19,959 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:19,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:19,977 INFO L225 Difference]: With dead ends: 11606 [2022-03-03 17:02:19,978 INFO L226 Difference]: Without dead ends: 11121 [2022-03-03 17:02:19,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:19,978 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 282 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:19,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 3231 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11121 states. [2022-03-03 17:02:20,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11121 to 8996. [2022-03-03 17:02:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:20,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-03 17:02:20,123 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-03 17:02:20,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:20,123 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-03 17:02:20,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:20,123 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-03 17:02:20,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:20,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:20,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:20,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-03 17:02:20,135 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:20,135 INFO L85 PathProgramCache]: Analyzing trace with hash 109965756, now seen corresponding path program 202 times [2022-03-03 17:02:20,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:20,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357587849] [2022-03-03 17:02:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:20,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:20,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:20,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357587849] [2022-03-03 17:02:20,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357587849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:20,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:20,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:20,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860680627] [2022-03-03 17:02:20,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:20,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:20,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:20,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:20,243 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:20,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:20,747 INFO L93 Difference]: Finished difference Result 11564 states and 31163 transitions. [2022-03-03 17:02:20,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:20,748 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:20,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:20,770 INFO L225 Difference]: With dead ends: 11564 [2022-03-03 17:02:20,771 INFO L226 Difference]: Without dead ends: 11078 [2022-03-03 17:02:20,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:20,771 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 267 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:20,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 3437 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:20,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11078 states. [2022-03-03 17:02:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11078 to 8992. [2022-03-03 17:02:20,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:20,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:02:20,930 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:02:20,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:20,930 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:02:20,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:20,930 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:02:20,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:20,942 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:20,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:20,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-03 17:02:20,942 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:20,943 INFO L85 PathProgramCache]: Analyzing trace with hash 810653312, now seen corresponding path program 203 times [2022-03-03 17:02:20,943 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:20,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754956704] [2022-03-03 17:02:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:20,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:21,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:21,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754956704] [2022-03-03 17:02:21,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754956704] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:21,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:21,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:21,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451200093] [2022-03-03 17:02:21,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:21,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:21,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:21,057 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:21,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:21,661 INFO L93 Difference]: Finished difference Result 11692 states and 31495 transitions. [2022-03-03 17:02:21,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:02:21,661 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:21,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:21,679 INFO L225 Difference]: With dead ends: 11692 [2022-03-03 17:02:21,679 INFO L226 Difference]: Without dead ends: 11166 [2022-03-03 17:02:21,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:02:21,680 INFO L933 BasicCegarLoop]: 330 mSDtfsCounter, 351 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:21,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [351 Valid, 3293 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-03-03 17:02:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8988. [2022-03-03 17:02:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:21,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:02:21,826 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:02:21,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:21,826 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:02:21,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:21,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:02:21,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:21,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:21,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:21,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-03 17:02:21,838 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:21,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1888341340, now seen corresponding path program 204 times [2022-03-03 17:02:21,838 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:21,838 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961390557] [2022-03-03 17:02:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:21,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:21,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:21,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961390557] [2022-03-03 17:02:21,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961390557] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:21,952 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:21,952 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:21,952 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929519392] [2022-03-03 17:02:21,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:21,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:21,952 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:21,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:21,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:21,953 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:22,517 INFO L93 Difference]: Finished difference Result 11694 states and 31487 transitions. [2022-03-03 17:02:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:02:22,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:22,536 INFO L225 Difference]: With dead ends: 11694 [2022-03-03 17:02:22,536 INFO L226 Difference]: Without dead ends: 11166 [2022-03-03 17:02:22,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=518, Invalid=1552, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:22,537 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 341 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:22,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 3322 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:22,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11166 states. [2022-03-03 17:02:22,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11166 to 8992. [2022-03-03 17:02:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:02:22,693 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:02:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:22,693 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:02:22,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:22,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:02:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:22,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:22,705 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:22,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-03 17:02:22,705 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:22,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash -619691002, now seen corresponding path program 205 times [2022-03-03 17:02:22,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:22,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658653965] [2022-03-03 17:02:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:22,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:22,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:22,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:22,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658653965] [2022-03-03 17:02:22,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658653965] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:22,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:22,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:22,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395695024] [2022-03-03 17:02:22,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:22,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:22,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:22,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:22,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:22,814 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:23,328 INFO L93 Difference]: Finished difference Result 11546 states and 31101 transitions. [2022-03-03 17:02:23,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:23,328 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:23,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:23,347 INFO L225 Difference]: With dead ends: 11546 [2022-03-03 17:02:23,347 INFO L226 Difference]: Without dead ends: 11061 [2022-03-03 17:02:23,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=374, Invalid=1108, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:23,347 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 3382 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3645 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:23,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 3645 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:23,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11061 states. [2022-03-03 17:02:23,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11061 to 8996. [2022-03-03 17:02:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-03-03 17:02:23,488 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-03-03 17:02:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:23,488 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-03-03 17:02:23,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-03-03 17:02:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:23,499 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:23,499 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:23,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-03 17:02:23,500 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:23,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:23,500 INFO L85 PathProgramCache]: Analyzing trace with hash 61929652, now seen corresponding path program 206 times [2022-03-03 17:02:23,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:23,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682875687] [2022-03-03 17:02:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:23,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:23,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:23,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682875687] [2022-03-03 17:02:23,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682875687] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:23,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:23,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:23,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16133047] [2022-03-03 17:02:23,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:23,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:23,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:23,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:23,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:23,603 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:24,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:24,048 INFO L93 Difference]: Finished difference Result 11464 states and 30880 transitions. [2022-03-03 17:02:24,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:24,048 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:24,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:24,066 INFO L225 Difference]: With dead ends: 11464 [2022-03-03 17:02:24,066 INFO L226 Difference]: Without dead ends: 10966 [2022-03-03 17:02:24,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:24,067 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 262 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 3419 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:24,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 3419 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2022-03-03 17:02:24,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 8980. [2022-03-03 17:02:24,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.701191669450941) internal successors, (24254), 8979 states have internal predecessors, (24254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24254 transitions. [2022-03-03 17:02:24,226 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24254 transitions. Word has length 109 [2022-03-03 17:02:24,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:24,226 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24254 transitions. [2022-03-03 17:02:24,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:24,227 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24254 transitions. [2022-03-03 17:02:24,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:24,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:24,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:24,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-03 17:02:24,242 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:24,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:24,242 INFO L85 PathProgramCache]: Analyzing trace with hash 510289414, now seen corresponding path program 207 times [2022-03-03 17:02:24,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:24,243 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905561407] [2022-03-03 17:02:24,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:24,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:24,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:24,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905561407] [2022-03-03 17:02:24,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905561407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:24,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:24,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:24,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827486585] [2022-03-03 17:02:24,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:24,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:24,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:24,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:24,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:24,371 INFO L87 Difference]: Start difference. First operand 8980 states and 24254 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:24,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:24,877 INFO L93 Difference]: Finished difference Result 11482 states and 30933 transitions. [2022-03-03 17:02:24,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:24,878 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:24,933 INFO L225 Difference]: With dead ends: 11482 [2022-03-03 17:02:24,933 INFO L226 Difference]: Without dead ends: 10997 [2022-03-03 17:02:24,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:24,933 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 272 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 3630 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:24,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 3630 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10997 states. [2022-03-03 17:02:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10997 to 8996. [2022-03-03 17:02:25,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:25,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-03 17:02:25,085 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-03 17:02:25,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:25,085 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-03 17:02:25,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:25,085 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-03 17:02:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:25,098 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:25,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:25,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-03 17:02:25,098 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:25,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:25,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1191910068, now seen corresponding path program 208 times [2022-03-03 17:02:25,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:25,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842793676] [2022-03-03 17:02:25,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:25,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:25,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:25,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842793676] [2022-03-03 17:02:25,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842793676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:25,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:25,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:25,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586384209] [2022-03-03 17:02:25,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:25,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:25,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:25,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:25,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:25,201 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:25,652 INFO L93 Difference]: Finished difference Result 11440 states and 30822 transitions. [2022-03-03 17:02:25,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:25,652 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:25,670 INFO L225 Difference]: With dead ends: 11440 [2022-03-03 17:02:25,670 INFO L226 Difference]: Without dead ends: 10954 [2022-03-03 17:02:25,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:25,671 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 263 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 3227 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:25,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 3227 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:25,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-03-03 17:02:25,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-03-03 17:02:25,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:25,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:02:25,822 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:02:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:25,822 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:02:25,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:25,822 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:02:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:25,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:25,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:25,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-03 17:02:25,834 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:25,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1892597624, now seen corresponding path program 209 times [2022-03-03 17:02:25,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:25,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396892321] [2022-03-03 17:02:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:25,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:25,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:25,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396892321] [2022-03-03 17:02:25,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396892321] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:25,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:25,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:25,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89350664] [2022-03-03 17:02:25,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:25,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:25,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:25,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:25,945 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:26,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:26,476 INFO L93 Difference]: Finished difference Result 11568 states and 31154 transitions. [2022-03-03 17:02:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:02:26,477 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:26,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:26,495 INFO L225 Difference]: With dead ends: 11568 [2022-03-03 17:02:26,495 INFO L226 Difference]: Without dead ends: 11042 [2022-03-03 17:02:26,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:02:26,495 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 348 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:26,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 2499 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:26,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-03 17:02:26,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-03-03 17:02:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:26,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:02:26,648 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:02:26,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:26,649 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:02:26,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:26,649 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:02:26,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:26,660 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:26,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:26,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-03 17:02:26,660 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:26,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:26,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1324681644, now seen corresponding path program 210 times [2022-03-03 17:02:26,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:26,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798315024] [2022-03-03 17:02:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:26,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:26,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:26,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798315024] [2022-03-03 17:02:26,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798315024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:26,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:26,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:26,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452270954] [2022-03-03 17:02:26,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:26,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:26,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:26,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:26,763 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:27,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:27,371 INFO L93 Difference]: Finished difference Result 11650 states and 31366 transitions. [2022-03-03 17:02:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:02:27,371 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:27,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:27,390 INFO L225 Difference]: With dead ends: 11650 [2022-03-03 17:02:27,391 INFO L226 Difference]: Without dead ends: 11122 [2022-03-03 17:02:27,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:02:27,391 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 330 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:27,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 3538 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:02:27,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11122 states. [2022-03-03 17:02:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11122 to 8992. [2022-03-03 17:02:27,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:27,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:02:27,542 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:02:27,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:27,543 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:02:27,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:27,543 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:02:27,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:27,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:27,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:27,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-03 17:02:27,555 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:27,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:27,555 INFO L85 PathProgramCache]: Analyzing trace with hash 462253310, now seen corresponding path program 211 times [2022-03-03 17:02:27,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:27,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313381553] [2022-03-03 17:02:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:27,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:27,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:27,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313381553] [2022-03-03 17:02:27,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313381553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:27,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:27,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:27,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797337734] [2022-03-03 17:02:27,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:27,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:27,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:27,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:27,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:27,660 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:28,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:28,123 INFO L93 Difference]: Finished difference Result 11486 states and 30936 transitions. [2022-03-03 17:02:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:28,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:28,142 INFO L225 Difference]: With dead ends: 11486 [2022-03-03 17:02:28,142 INFO L226 Difference]: Without dead ends: 11001 [2022-03-03 17:02:28,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:28,143 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 275 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:28,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 2687 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:28,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11001 states. [2022-03-03 17:02:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11001 to 8996. [2022-03-03 17:02:28,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:28,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-03-03 17:02:28,291 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-03-03 17:02:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:28,292 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-03-03 17:02:28,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:28,292 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-03-03 17:02:28,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:28,303 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:28,303 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:28,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-03 17:02:28,304 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:28,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:28,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1143873964, now seen corresponding path program 212 times [2022-03-03 17:02:28,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:28,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759632261] [2022-03-03 17:02:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:28,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:28,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:28,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759632261] [2022-03-03 17:02:28,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759632261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:28,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:28,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:28,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004285445] [2022-03-03 17:02:28,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:28,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:28,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:28,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:28,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:28,406 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:28,857 INFO L93 Difference]: Finished difference Result 11420 states and 30759 transitions. [2022-03-03 17:02:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:28,857 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:28,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:28,874 INFO L225 Difference]: With dead ends: 11420 [2022-03-03 17:02:28,875 INFO L226 Difference]: Without dead ends: 10926 [2022-03-03 17:02:28,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:28,875 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 261 mSDsluCounter, 3367 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 3634 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:28,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 3634 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10926 states. [2022-03-03 17:02:28,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10926 to 8984. [2022-03-03 17:02:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:29,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:02:29,019 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:02:29,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:29,019 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:02:29,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:29,020 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:02:29,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:29,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:29,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:29,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-03 17:02:29,031 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1466807816, now seen corresponding path program 213 times [2022-03-03 17:02:29,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:29,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624167210] [2022-03-03 17:02:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:29,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:29,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:29,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624167210] [2022-03-03 17:02:29,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624167210] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:29,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:29,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:29,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075038264] [2022-03-03 17:02:29,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:29,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:29,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:29,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:29,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:29,136 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:29,735 INFO L93 Difference]: Finished difference Result 11535 states and 31031 transitions. [2022-03-03 17:02:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:02:29,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:29,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:29,751 INFO L225 Difference]: With dead ends: 11535 [2022-03-03 17:02:29,752 INFO L226 Difference]: Without dead ends: 10964 [2022-03-03 17:02:29,752 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:02:29,752 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 399 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:29,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [399 Valid, 2741 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10964 states. [2022-03-03 17:02:29,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10964 to 8988. [2022-03-03 17:02:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:29,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:02:29,879 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:02:29,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:29,879 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:02:29,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:29,879 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:02:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:29,889 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:29,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:29,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-03 17:02:29,890 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:29,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:29,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1038597026, now seen corresponding path program 214 times [2022-03-03 17:02:29,890 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:29,890 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987118300] [2022-03-03 17:02:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:29,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:29,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987118300] [2022-03-03 17:02:29,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987118300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:29,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:29,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:29,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956956462] [2022-03-03 17:02:29,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:29,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:29,989 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:29,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:29,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:29,989 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:30,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:30,595 INFO L93 Difference]: Finished difference Result 11546 states and 31076 transitions. [2022-03-03 17:02:30,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:30,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:30,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:30,647 INFO L225 Difference]: With dead ends: 11546 [2022-03-03 17:02:30,647 INFO L226 Difference]: Without dead ends: 11018 [2022-03-03 17:02:30,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 17:02:30,648 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 361 mSDsluCounter, 3389 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:30,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3649 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:30,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11018 states. [2022-03-03 17:02:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11018 to 8992. [2022-03-03 17:02:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-03 17:02:30,786 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-03 17:02:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:30,786 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-03 17:02:30,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-03 17:02:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:30,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:30,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:30,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-03 17:02:30,799 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:30,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:30,799 INFO L85 PathProgramCache]: Analyzing trace with hash 748337928, now seen corresponding path program 215 times [2022-03-03 17:02:30,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:30,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697873403] [2022-03-03 17:02:30,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:30,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:30,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:30,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:30,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697873403] [2022-03-03 17:02:30,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697873403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:30,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:30,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:30,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928254725] [2022-03-03 17:02:30,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:30,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:30,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:30,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:30,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:30,900 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:31,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:31,377 INFO L93 Difference]: Finished difference Result 11382 states and 30646 transitions. [2022-03-03 17:02:31,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:31,378 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:31,395 INFO L225 Difference]: With dead ends: 11382 [2022-03-03 17:02:31,395 INFO L226 Difference]: Without dead ends: 10897 [2022-03-03 17:02:31,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 17:02:31,396 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 270 mSDsluCounter, 2982 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:31,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 3245 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10897 states. [2022-03-03 17:02:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10897 to 8996. [2022-03-03 17:02:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:31,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-03-03 17:02:31,544 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-03-03 17:02:31,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:31,544 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-03-03 17:02:31,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-03-03 17:02:31,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:31,556 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:31,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:31,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-03 17:02:31,556 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:31,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1429958582, now seen corresponding path program 216 times [2022-03-03 17:02:31,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:31,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743963802] [2022-03-03 17:02:31,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:31,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:31,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:31,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:31,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743963802] [2022-03-03 17:02:31,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743963802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:31,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:31,656 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:31,656 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691861638] [2022-03-03 17:02:31,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:31,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:31,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:31,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:31,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:31,657 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:32,087 INFO L93 Difference]: Finished difference Result 11316 states and 30469 transitions. [2022-03-03 17:02:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:02:32,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:32,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:32,105 INFO L225 Difference]: With dead ends: 11316 [2022-03-03 17:02:32,105 INFO L226 Difference]: Without dead ends: 10814 [2022-03-03 17:02:32,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:02:32,106 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 267 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:32,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2791 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10814 states. [2022-03-03 17:02:32,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10814 to 8976. [2022-03-03 17:02:32,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8976 states, 8975 states have (on average 2.7011699164345404) internal successors, (24243), 8975 states have internal predecessors, (24243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:32,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8976 states to 8976 states and 24243 transitions. [2022-03-03 17:02:32,246 INFO L78 Accepts]: Start accepts. Automaton has 8976 states and 24243 transitions. Word has length 109 [2022-03-03 17:02:32,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:32,246 INFO L470 AbstractCegarLoop]: Abstraction has 8976 states and 24243 transitions. [2022-03-03 17:02:32,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:32,246 INFO L276 IsEmpty]: Start isEmpty. Operand 8976 states and 24243 transitions. [2022-03-03 17:02:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:32,257 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:32,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:32,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-03 17:02:32,257 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:32,257 INFO L85 PathProgramCache]: Analyzing trace with hash 417121160, now seen corresponding path program 217 times [2022-03-03 17:02:32,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:32,258 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330081811] [2022-03-03 17:02:32,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:32,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:32,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:32,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:32,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330081811] [2022-03-03 17:02:32,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330081811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:32,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:32,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:32,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821488808] [2022-03-03 17:02:32,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:32,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:32,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:32,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:32,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:32,375 INFO L87 Difference]: Start difference. First operand 8976 states and 24243 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:32,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:32,883 INFO L93 Difference]: Finished difference Result 11594 states and 31241 transitions. [2022-03-03 17:02:32,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:02:32,883 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:32,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:32,902 INFO L225 Difference]: With dead ends: 11594 [2022-03-03 17:02:32,902 INFO L226 Difference]: Without dead ends: 11109 [2022-03-03 17:02:32,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:02:32,902 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 306 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:32,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 3086 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2022-03-03 17:02:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 8996. [2022-03-03 17:02:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-03 17:02:33,051 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-03 17:02:33,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:33,052 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-03 17:02:33,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-03 17:02:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:33,064 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:33,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:33,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-03 17:02:33,064 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:33,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1098741814, now seen corresponding path program 218 times [2022-03-03 17:02:33,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:33,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772640528] [2022-03-03 17:02:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:33,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:33,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:33,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772640528] [2022-03-03 17:02:33,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772640528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:33,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:33,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:33,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82226411] [2022-03-03 17:02:33,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:33,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:33,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:33,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:33,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:33,170 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:33,628 INFO L93 Difference]: Finished difference Result 11560 states and 31152 transitions. [2022-03-03 17:02:33,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:33,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:33,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:33,646 INFO L225 Difference]: With dead ends: 11560 [2022-03-03 17:02:33,646 INFO L226 Difference]: Without dead ends: 11074 [2022-03-03 17:02:33,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:33,646 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 284 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:33,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 3582 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:33,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11074 states. [2022-03-03 17:02:33,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11074 to 8992. [2022-03-03 17:02:33,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:02:33,778 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:02:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:33,778 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:02:33,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:02:33,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:33,789 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:33,789 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:33,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-03 17:02:33,789 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:33,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:33,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1799429370, now seen corresponding path program 219 times [2022-03-03 17:02:33,790 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:33,790 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998636727] [2022-03-03 17:02:33,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:33,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:33,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:33,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998636727] [2022-03-03 17:02:33,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998636727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:33,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:33,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:33,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443574647] [2022-03-03 17:02:33,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:33,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:33,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:33,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:33,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:33,898 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:34,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:34,482 INFO L93 Difference]: Finished difference Result 11596 states and 31247 transitions. [2022-03-03 17:02:34,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:34,482 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:34,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:34,501 INFO L225 Difference]: With dead ends: 11596 [2022-03-03 17:02:34,501 INFO L226 Difference]: Without dead ends: 11070 [2022-03-03 17:02:34,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:34,501 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 343 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:34,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 3680 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2022-03-03 17:02:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 8988. [2022-03-03 17:02:34,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:02:34,650 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:02:34,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:34,650 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:02:34,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:02:34,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:34,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:34,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:34,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-03 17:02:34,662 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -344647094, now seen corresponding path program 220 times [2022-03-03 17:02:34,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:34,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157855918] [2022-03-03 17:02:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:34,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:34,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:34,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157855918] [2022-03-03 17:02:34,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157855918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:34,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:34,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:34,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986895899] [2022-03-03 17:02:34,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:34,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:34,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:34,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:34,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:34,767 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:35,415 INFO L93 Difference]: Finished difference Result 11824 states and 31846 transitions. [2022-03-03 17:02:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:02:35,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:35,433 INFO L225 Difference]: With dead ends: 11824 [2022-03-03 17:02:35,433 INFO L226 Difference]: Without dead ends: 11258 [2022-03-03 17:02:35,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:02:35,434 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 422 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 3739 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:35,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 3739 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:35,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-03-03 17:02:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 8984. [2022-03-03 17:02:35,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:02:35,579 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:02:35,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:35,580 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:02:35,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:02:35,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:35,591 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:35,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:35,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-03 17:02:35,592 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:35,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:35,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1447765390, now seen corresponding path program 221 times [2022-03-03 17:02:35,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:35,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506986814] [2022-03-03 17:02:35,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:35,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:35,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:35,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506986814] [2022-03-03 17:02:35,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506986814] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:35,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:35,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:35,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434864131] [2022-03-03 17:02:35,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:35,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:35,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:35,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:35,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:35,715 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:36,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:36,193 INFO L93 Difference]: Finished difference Result 11570 states and 31171 transitions. [2022-03-03 17:02:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:36,193 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:36,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:36,211 INFO L225 Difference]: With dead ends: 11570 [2022-03-03 17:02:36,211 INFO L226 Difference]: Without dead ends: 11085 [2022-03-03 17:02:36,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:36,212 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 291 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:36,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 3571 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11085 states. [2022-03-03 17:02:36,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11085 to 8996. [2022-03-03 17:02:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:36,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-03 17:02:36,378 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-03 17:02:36,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:36,378 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-03 17:02:36,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-03 17:02:36,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:36,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:36,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:36,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-03 17:02:36,390 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:36,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:36,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2129386044, now seen corresponding path program 222 times [2022-03-03 17:02:36,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:36,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716894799] [2022-03-03 17:02:36,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:36,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:36,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:36,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:36,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716894799] [2022-03-03 17:02:36,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716894799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:36,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:36,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:36,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832311656] [2022-03-03 17:02:36,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:36,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:36,499 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:36,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:36,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:36,499 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:36,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:36,965 INFO L93 Difference]: Finished difference Result 11528 states and 31060 transitions. [2022-03-03 17:02:36,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:36,965 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:36,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:36,982 INFO L225 Difference]: With dead ends: 11528 [2022-03-03 17:02:36,983 INFO L226 Difference]: Without dead ends: 11042 [2022-03-03 17:02:36,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:36,983 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 299 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:36,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 3374 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:36,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-03 17:02:37,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8992. [2022-03-03 17:02:37,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:02:37,119 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:02:37,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:37,119 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:02:37,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:02:37,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:37,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:37,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:37,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-03 17:02:37,131 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:37,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1464893696, now seen corresponding path program 223 times [2022-03-03 17:02:37,131 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:37,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881324166] [2022-03-03 17:02:37,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:37,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:37,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:37,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881324166] [2022-03-03 17:02:37,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881324166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:37,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:37,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:37,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432037262] [2022-03-03 17:02:37,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:37,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:37,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:37,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:37,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:37,243 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:37,827 INFO L93 Difference]: Finished difference Result 11696 states and 31502 transitions. [2022-03-03 17:02:37,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:02:37,828 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:37,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:37,846 INFO L225 Difference]: With dead ends: 11696 [2022-03-03 17:02:37,846 INFO L226 Difference]: Without dead ends: 11170 [2022-03-03 17:02:37,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:02:37,847 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 360 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3663 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:37,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3663 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:37,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11170 states. [2022-03-03 17:02:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11170 to 8988. [2022-03-03 17:02:37,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:02:37,984 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:02:37,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:37,984 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:02:37,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:02:37,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:37,995 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:37,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:37,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-03 17:02:37,995 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:37,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:37,995 INFO L85 PathProgramCache]: Analyzing trace with hash -387205668, now seen corresponding path program 224 times [2022-03-03 17:02:37,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:37,996 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124591107] [2022-03-03 17:02:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:37,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:38,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:38,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124591107] [2022-03-03 17:02:38,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124591107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:38,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:38,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:38,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716438922] [2022-03-03 17:02:38,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:38,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:38,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:38,106 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:38,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:38,675 INFO L93 Difference]: Finished difference Result 11594 states and 31208 transitions. [2022-03-03 17:02:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:02:38,675 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:38,693 INFO L225 Difference]: With dead ends: 11594 [2022-03-03 17:02:38,693 INFO L226 Difference]: Without dead ends: 11066 [2022-03-03 17:02:38,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:02:38,693 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 375 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:38,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 3117 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:38,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-03-03 17:02:38,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 8992. [2022-03-03 17:02:38,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.699922144366589) internal successors, (24275), 8991 states have internal predecessors, (24275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24275 transitions. [2022-03-03 17:02:38,831 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24275 transitions. Word has length 109 [2022-03-03 17:02:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:38,831 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24275 transitions. [2022-03-03 17:02:38,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24275 transitions. [2022-03-03 17:02:38,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:38,842 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:38,842 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:38,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-03 17:02:38,842 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:38,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1399729286, now seen corresponding path program 225 times [2022-03-03 17:02:38,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:38,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320759074] [2022-03-03 17:02:38,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:38,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:38,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:38,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320759074] [2022-03-03 17:02:38,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320759074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:38,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:38,947 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:38,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274954462] [2022-03-03 17:02:38,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:38,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:38,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:38,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:38,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:38,948 INFO L87 Difference]: Start difference. First operand 8992 states and 24275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:39,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:39,411 INFO L93 Difference]: Finished difference Result 11510 states and 30998 transitions. [2022-03-03 17:02:39,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:39,411 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:39,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:39,427 INFO L225 Difference]: With dead ends: 11510 [2022-03-03 17:02:39,427 INFO L226 Difference]: Without dead ends: 11025 [2022-03-03 17:02:39,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=381, Invalid=1179, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 17:02:39,428 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 300 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:39,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 3388 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:39,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2022-03-03 17:02:39,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 8996. [2022-03-03 17:02:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.6994997220678156) internal successors, (24282), 8995 states have internal predecessors, (24282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24282 transitions. [2022-03-03 17:02:39,547 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24282 transitions. Word has length 109 [2022-03-03 17:02:39,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:39,548 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24282 transitions. [2022-03-03 17:02:39,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:39,548 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24282 transitions. [2022-03-03 17:02:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:39,558 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:39,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:39,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-03 17:02:39,558 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:39,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:39,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2081349940, now seen corresponding path program 226 times [2022-03-03 17:02:39,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:39,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458241012] [2022-03-03 17:02:39,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:39,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:39,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:39,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:39,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458241012] [2022-03-03 17:02:39,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458241012] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:39,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:39,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:39,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873013046] [2022-03-03 17:02:39,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:39,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:39,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:39,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:39,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:39,664 INFO L87 Difference]: Start difference. First operand 8996 states and 24282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:40,089 INFO L93 Difference]: Finished difference Result 11460 states and 30865 transitions. [2022-03-03 17:02:40,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:40,089 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:40,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:40,105 INFO L225 Difference]: With dead ends: 11460 [2022-03-03 17:02:40,105 INFO L226 Difference]: Without dead ends: 10962 [2022-03-03 17:02:40,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:40,106 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 280 mSDsluCounter, 3130 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:40,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3395 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:40,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10962 states. [2022-03-03 17:02:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10962 to 8980. [2022-03-03 17:02:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-03 17:02:40,231 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-03 17:02:40,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:40,231 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-03 17:02:40,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,232 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-03 17:02:40,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:40,242 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:40,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:40,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-03 17:02:40,242 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:40,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:40,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1895765318, now seen corresponding path program 227 times [2022-03-03 17:02:40,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:40,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223783747] [2022-03-03 17:02:40,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:40,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:40,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:40,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223783747] [2022-03-03 17:02:40,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223783747] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:40,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:40,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:40,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729931294] [2022-03-03 17:02:40,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:40,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:40,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:40,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:40,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:40,356 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:40,803 INFO L93 Difference]: Finished difference Result 11450 states and 30841 transitions. [2022-03-03 17:02:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:02:40,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:40,819 INFO L225 Difference]: With dead ends: 11450 [2022-03-03 17:02:40,819 INFO L226 Difference]: Without dead ends: 10965 [2022-03-03 17:02:40,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:02:40,820 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 276 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3009 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:40,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 3009 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:40,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10965 states. [2022-03-03 17:02:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10965 to 8996. [2022-03-03 17:02:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-03 17:02:40,952 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-03 17:02:40,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:40,952 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-03 17:02:40,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-03 17:02:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:40,962 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:40,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:40,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-03 17:02:40,963 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1717581324, now seen corresponding path program 228 times [2022-03-03 17:02:40,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:40,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61529491] [2022-03-03 17:02:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:40,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:41,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:41,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61529491] [2022-03-03 17:02:41,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61529491] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:41,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:41,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:41,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127326876] [2022-03-03 17:02:41,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:41,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:41,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:41,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:41,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:41,069 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:41,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:41,503 INFO L93 Difference]: Finished difference Result 11424 states and 30774 transitions. [2022-03-03 17:02:41,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:41,503 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:41,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:41,519 INFO L225 Difference]: With dead ends: 11424 [2022-03-03 17:02:41,519 INFO L226 Difference]: Without dead ends: 10938 [2022-03-03 17:02:41,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:41,520 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 289 mSDsluCounter, 3298 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:41,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 3551 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:41,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10938 states. [2022-03-03 17:02:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10938 to 8992. [2022-03-03 17:02:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:41,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:02:41,669 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:02:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:41,669 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:02:41,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:02:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:41,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:41,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:41,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-03 17:02:41,681 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:41,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1016893768, now seen corresponding path program 229 times [2022-03-03 17:02:41,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:41,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099294434] [2022-03-03 17:02:41,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:41,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:41,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:41,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099294434] [2022-03-03 17:02:41,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099294434] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:41,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:41,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:41,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082261120] [2022-03-03 17:02:41,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:41,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:41,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:41,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:41,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:41,789 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:42,337 INFO L93 Difference]: Finished difference Result 11460 states and 30869 transitions. [2022-03-03 17:02:42,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:42,338 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:42,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:42,355 INFO L225 Difference]: With dead ends: 11460 [2022-03-03 17:02:42,355 INFO L226 Difference]: Without dead ends: 10934 [2022-03-03 17:02:42,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:42,355 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 359 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:42,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 2876 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10934 states. [2022-03-03 17:02:42,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10934 to 8988. [2022-03-03 17:02:42,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:02:42,496 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:02:42,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:42,496 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:02:42,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:02:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:42,508 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:42,508 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:42,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-03 17:02:42,508 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:42,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:42,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1133997064, now seen corresponding path program 230 times [2022-03-03 17:02:42,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:42,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067775129] [2022-03-03 17:02:42,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:42,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:42,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:42,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067775129] [2022-03-03 17:02:42,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067775129] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:42,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:42,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:42,614 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973193232] [2022-03-03 17:02:42,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:42,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:42,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:42,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:42,615 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:43,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:43,237 INFO L93 Difference]: Finished difference Result 11496 states and 30964 transitions. [2022-03-03 17:02:43,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:02:43,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:43,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:43,254 INFO L225 Difference]: With dead ends: 11496 [2022-03-03 17:02:43,254 INFO L226 Difference]: Without dead ends: 10930 [2022-03-03 17:02:43,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:02:43,255 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 413 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:43,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3496 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10930 states. [2022-03-03 17:02:43,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10930 to 8984. [2022-03-03 17:02:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.70032283201603) internal successors, (24257), 8983 states have internal predecessors, (24257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:43,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24257 transitions. [2022-03-03 17:02:43,400 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24257 transitions. Word has length 109 [2022-03-03 17:02:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:43,401 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24257 transitions. [2022-03-03 17:02:43,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:43,401 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24257 transitions. [2022-03-03 17:02:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:43,413 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:43,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:43,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-03 17:02:43,413 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:43,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:43,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2098188412, now seen corresponding path program 231 times [2022-03-03 17:02:43,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:43,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842278213] [2022-03-03 17:02:43,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:43,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:43,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:43,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842278213] [2022-03-03 17:02:43,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842278213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:43,526 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:43,526 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:43,526 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690969157] [2022-03-03 17:02:43,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:43,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:43,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:43,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:43,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:43,527 INFO L87 Difference]: Start difference. First operand 8984 states and 24257 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:44,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:44,327 INFO L93 Difference]: Finished difference Result 11424 states and 30762 transitions. [2022-03-03 17:02:44,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 17:02:44,327 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:44,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:44,342 INFO L225 Difference]: With dead ends: 11424 [2022-03-03 17:02:44,342 INFO L226 Difference]: Without dead ends: 10810 [2022-03-03 17:02:44,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=844, Invalid=2696, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:02:44,343 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 443 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:44,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 2936 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2022-03-03 17:02:44,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 8972. [2022-03-03 17:02:44,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8972 states, 8971 states have (on average 2.701148144019619) internal successors, (24232), 8971 states have internal predecessors, (24232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:44,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 24232 transitions. [2022-03-03 17:02:44,461 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 24232 transitions. Word has length 109 [2022-03-03 17:02:44,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:44,461 INFO L470 AbstractCegarLoop]: Abstraction has 8972 states and 24232 transitions. [2022-03-03 17:02:44,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 24232 transitions. [2022-03-03 17:02:44,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:44,471 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:44,471 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:44,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-03 17:02:44,471 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:44,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1433525632, now seen corresponding path program 232 times [2022-03-03 17:02:44,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:44,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919645428] [2022-03-03 17:02:44,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:44,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:44,575 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:44,575 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919645428] [2022-03-03 17:02:44,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919645428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:44,575 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:44,575 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:44,575 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153865415] [2022-03-03 17:02:44,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:44,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:44,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:44,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:44,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:44,575 INFO L87 Difference]: Start difference. First operand 8972 states and 24232 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:45,030 INFO L93 Difference]: Finished difference Result 11378 states and 30647 transitions. [2022-03-03 17:02:45,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:02:45,030 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:45,047 INFO L225 Difference]: With dead ends: 11378 [2022-03-03 17:02:45,047 INFO L226 Difference]: Without dead ends: 10893 [2022-03-03 17:02:45,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:02:45,048 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 360 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:45,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3581 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:45,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10893 states. [2022-03-03 17:02:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10893 to 9000. [2022-03-03 17:02:45,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7008556506278474) internal successors, (24305), 8999 states have internal predecessors, (24305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24305 transitions. [2022-03-03 17:02:45,195 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24305 transitions. Word has length 109 [2022-03-03 17:02:45,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:45,195 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24305 transitions. [2022-03-03 17:02:45,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24305 transitions. [2022-03-03 17:02:45,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:45,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:45,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:45,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-03 17:02:45,208 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:45,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2115146286, now seen corresponding path program 233 times [2022-03-03 17:02:45,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:45,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053069323] [2022-03-03 17:02:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:45,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:45,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:45,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053069323] [2022-03-03 17:02:45,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053069323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:45,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:45,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:45,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641887772] [2022-03-03 17:02:45,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:45,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:45,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:45,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:45,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:45,310 INFO L87 Difference]: Start difference. First operand 9000 states and 24305 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:45,750 INFO L93 Difference]: Finished difference Result 11344 states and 30558 transitions. [2022-03-03 17:02:45,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:45,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:45,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:45,768 INFO L225 Difference]: With dead ends: 11344 [2022-03-03 17:02:45,768 INFO L226 Difference]: Without dead ends: 10858 [2022-03-03 17:02:45,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:45,769 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 357 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:45,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 3844 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:45,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10858 states. [2022-03-03 17:02:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10858 to 8996. [2022-03-03 17:02:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700833796553641) internal successors, (24294), 8995 states have internal predecessors, (24294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24294 transitions. [2022-03-03 17:02:45,924 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24294 transitions. Word has length 109 [2022-03-03 17:02:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:45,924 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24294 transitions. [2022-03-03 17:02:45,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,924 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24294 transitions. [2022-03-03 17:02:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:45,938 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:45,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:45,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-03 17:02:45,938 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:45,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:45,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1479133454, now seen corresponding path program 234 times [2022-03-03 17:02:45,939 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:45,939 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689978487] [2022-03-03 17:02:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:45,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:46,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:46,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689978487] [2022-03-03 17:02:46,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689978487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:46,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:46,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:46,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698527143] [2022-03-03 17:02:46,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:46,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:46,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:46,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:46,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:46,053 INFO L87 Difference]: Start difference. First operand 8996 states and 24294 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:46,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:46,613 INFO L93 Difference]: Finished difference Result 11380 states and 30653 transitions. [2022-03-03 17:02:46,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:46,614 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:46,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:46,631 INFO L225 Difference]: With dead ends: 11380 [2022-03-03 17:02:46,631 INFO L226 Difference]: Without dead ends: 10854 [2022-03-03 17:02:46,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:46,632 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 426 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:46,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [426 Valid, 3132 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:46,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2022-03-03 17:02:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 8992. [2022-03-03 17:02:46,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.7008119230341454) internal successors, (24283), 8991 states have internal predecessors, (24283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:46,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24283 transitions. [2022-03-03 17:02:46,775 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24283 transitions. Word has length 109 [2022-03-03 17:02:46,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:46,775 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24283 transitions. [2022-03-03 17:02:46,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:46,776 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24283 transitions. [2022-03-03 17:02:46,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:46,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:46,787 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:46,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-03 17:02:46,787 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:46,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:46,787 INFO L85 PathProgramCache]: Analyzing trace with hash 671757378, now seen corresponding path program 235 times [2022-03-03 17:02:46,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:46,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112751109] [2022-03-03 17:02:46,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:46,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:46,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:46,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112751109] [2022-03-03 17:02:46,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112751109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:46,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:46,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:46,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089427279] [2022-03-03 17:02:46,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:46,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:46,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:46,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:46,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:46,896 INFO L87 Difference]: Start difference. First operand 8992 states and 24283 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:47,573 INFO L93 Difference]: Finished difference Result 11608 states and 31252 transitions. [2022-03-03 17:02:47,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:02:47,573 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:47,630 INFO L225 Difference]: With dead ends: 11608 [2022-03-03 17:02:47,630 INFO L226 Difference]: Without dead ends: 11042 [2022-03-03 17:02:47,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:02:47,631 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 520 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:47,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [520 Valid, 3478 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:47,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2022-03-03 17:02:47,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8988. [2022-03-03 17:02:47,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.700790030043396) internal successors, (24272), 8987 states have internal predecessors, (24272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:47,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24272 transitions. [2022-03-03 17:02:47,750 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24272 transitions. Word has length 109 [2022-03-03 17:02:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:47,750 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24272 transitions. [2022-03-03 17:02:47,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:47,750 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24272 transitions. [2022-03-03 17:02:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:47,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:47,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:47,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-03 17:02:47,762 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:47,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1830797434, now seen corresponding path program 236 times [2022-03-03 17:02:47,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:47,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801725186] [2022-03-03 17:02:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:47,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:47,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:47,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801725186] [2022-03-03 17:02:47,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801725186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:47,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:47,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:47,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192146234] [2022-03-03 17:02:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:47,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:47,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:47,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:47,868 INFO L87 Difference]: Start difference. First operand 8988 states and 24272 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:48,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:48,337 INFO L93 Difference]: Finished difference Result 11354 states and 30577 transitions. [2022-03-03 17:02:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:48,337 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:48,354 INFO L225 Difference]: With dead ends: 11354 [2022-03-03 17:02:48,355 INFO L226 Difference]: Without dead ends: 10869 [2022-03-03 17:02:48,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:48,355 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 362 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:48,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 3592 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10869 states. [2022-03-03 17:02:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10869 to 9000. [2022-03-03 17:02:48,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-03-03 17:02:48,502 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-03-03 17:02:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:48,503 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-03-03 17:02:48,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-03-03 17:02:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:48,514 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:48,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:48,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-03 17:02:48,515 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1149176780, now seen corresponding path program 237 times [2022-03-03 17:02:48,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:48,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350318120] [2022-03-03 17:02:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:48,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:48,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:48,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350318120] [2022-03-03 17:02:48,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350318120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:48,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:48,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:48,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053350308] [2022-03-03 17:02:48,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:48,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:48,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:48,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:48,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:48,614 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:49,029 INFO L93 Difference]: Finished difference Result 11312 states and 30466 transitions. [2022-03-03 17:02:49,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:49,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:49,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:49,046 INFO L225 Difference]: With dead ends: 11312 [2022-03-03 17:02:49,046 INFO L226 Difference]: Without dead ends: 10826 [2022-03-03 17:02:49,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:49,047 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 356 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:49,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 3364 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:49,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2022-03-03 17:02:49,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 8996. [2022-03-03 17:02:49,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:49,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-03 17:02:49,189 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-03 17:02:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:49,189 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-03 17:02:49,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:49,189 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-03 17:02:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:49,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:49,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:49,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-03 17:02:49,201 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:49,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:49,201 INFO L85 PathProgramCache]: Analyzing trace with hash -448489224, now seen corresponding path program 238 times [2022-03-03 17:02:49,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:49,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243405654] [2022-03-03 17:02:49,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:49,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:49,304 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:49,304 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243405654] [2022-03-03 17:02:49,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243405654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:49,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:49,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:49,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395957817] [2022-03-03 17:02:49,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:49,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:49,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:49,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:49,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:49,305 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:49,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:49,813 INFO L93 Difference]: Finished difference Result 11480 states and 30908 transitions. [2022-03-03 17:02:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:02:49,813 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:49,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:49,830 INFO L225 Difference]: With dead ends: 11480 [2022-03-03 17:02:49,830 INFO L226 Difference]: Without dead ends: 10954 [2022-03-03 17:02:49,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:02:49,831 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 444 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:49,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2814 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:49,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10954 states. [2022-03-03 17:02:49,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10954 to 8992. [2022-03-03 17:02:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:49,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:02:49,972 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:02:49,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:49,972 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:02:49,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:49,972 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:02:49,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:49,983 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:49,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:49,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-03 17:02:49,984 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:49,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:49,984 INFO L85 PathProgramCache]: Analyzing trace with hash 629198804, now seen corresponding path program 239 times [2022-03-03 17:02:49,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:49,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580416456] [2022-03-03 17:02:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:49,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:50,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:50,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580416456] [2022-03-03 17:02:50,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580416456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:50,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:50,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:50,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294848629] [2022-03-03 17:02:50,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:50,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:50,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:50,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:50,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:50,088 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:50,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:50,620 INFO L93 Difference]: Finished difference Result 11378 states and 30614 transitions. [2022-03-03 17:02:50,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 17:02:50,620 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:50,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:50,640 INFO L225 Difference]: With dead ends: 11378 [2022-03-03 17:02:50,640 INFO L226 Difference]: Without dead ends: 10850 [2022-03-03 17:02:50,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:02:50,641 INFO L933 BasicCegarLoop]: 344 mSDtfsCounter, 424 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:50,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 3601 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:50,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10850 states. [2022-03-03 17:02:50,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10850 to 8996. [2022-03-03 17:02:50,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.699944413563091) internal successors, (24286), 8995 states have internal predecessors, (24286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:50,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24286 transitions. [2022-03-03 17:02:50,785 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24286 transitions. Word has length 109 [2022-03-03 17:02:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:50,786 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24286 transitions. [2022-03-03 17:02:50,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24286 transitions. [2022-03-03 17:02:50,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:50,798 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:50,798 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:50,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-03 17:02:50,798 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:50,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1878833538, now seen corresponding path program 240 times [2022-03-03 17:02:50,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:50,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53750478] [2022-03-03 17:02:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:50,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:50,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:50,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:50,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53750478] [2022-03-03 17:02:50,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53750478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:50,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:50,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:50,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156634373] [2022-03-03 17:02:50,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:50,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:50,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:50,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:50,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:50,898 INFO L87 Difference]: Start difference. First operand 8996 states and 24286 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:51,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:51,342 INFO L93 Difference]: Finished difference Result 11294 states and 30404 transitions. [2022-03-03 17:02:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:51,343 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:51,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:51,359 INFO L225 Difference]: With dead ends: 11294 [2022-03-03 17:02:51,359 INFO L226 Difference]: Without dead ends: 10809 [2022-03-03 17:02:51,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=386, Invalid=1096, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:51,360 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 409 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:51,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2478 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:51,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10809 states. [2022-03-03 17:02:51,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10809 to 9000. [2022-03-03 17:02:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.6995221691299034) internal successors, (24293), 8999 states have internal predecessors, (24293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:51,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24293 transitions. [2022-03-03 17:02:51,477 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24293 transitions. Word has length 109 [2022-03-03 17:02:51,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:51,478 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24293 transitions. [2022-03-03 17:02:51,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:51,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24293 transitions. [2022-03-03 17:02:51,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:51,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:51,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:51,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-03 17:02:51,488 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:51,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:51,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1197212884, now seen corresponding path program 241 times [2022-03-03 17:02:51,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:51,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461356037] [2022-03-03 17:02:51,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:51,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:51,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:51,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:51,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461356037] [2022-03-03 17:02:51,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461356037] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:51,588 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:51,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:51,588 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045946191] [2022-03-03 17:02:51,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:51,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:51,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:51,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:51,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:51,589 INFO L87 Difference]: Start difference. First operand 9000 states and 24293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:51,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:51,963 INFO L93 Difference]: Finished difference Result 11244 states and 30271 transitions. [2022-03-03 17:02:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:02:51,964 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:51,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:51,979 INFO L225 Difference]: With dead ends: 11244 [2022-03-03 17:02:51,979 INFO L226 Difference]: Without dead ends: 10746 [2022-03-03 17:02:51,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:02:51,979 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 362 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:51,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2864 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:51,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10746 states. [2022-03-03 17:02:52,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10746 to 8984. [2022-03-03 17:02:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8984 states, 8983 states have (on average 2.7007681175553824) internal successors, (24261), 8983 states have internal predecessors, (24261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8984 states to 8984 states and 24261 transitions. [2022-03-03 17:02:52,099 INFO L78 Accepts]: Start accepts. Automaton has 8984 states and 24261 transitions. Word has length 109 [2022-03-03 17:02:52,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:52,099 INFO L470 AbstractCegarLoop]: Abstraction has 8984 states and 24261 transitions. [2022-03-03 17:02:52,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,100 INFO L276 IsEmpty]: Start isEmpty. Operand 8984 states and 24261 transitions. [2022-03-03 17:02:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:52,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:52,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:52,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-03 17:02:52,110 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:52,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:52,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1382797506, now seen corresponding path program 242 times [2022-03-03 17:02:52,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:52,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007416183] [2022-03-03 17:02:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:52,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:52,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:52,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007416183] [2022-03-03 17:02:52,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007416183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:52,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:52,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:52,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334708489] [2022-03-03 17:02:52,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:52,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:52,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:52,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:52,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:52,221 INFO L87 Difference]: Start difference. First operand 8984 states and 24261 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:52,661 INFO L93 Difference]: Finished difference Result 11306 states and 30445 transitions. [2022-03-03 17:02:52,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:02:52,661 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:52,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:52,678 INFO L225 Difference]: With dead ends: 11306 [2022-03-03 17:02:52,679 INFO L226 Difference]: Without dead ends: 10821 [2022-03-03 17:02:52,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:02:52,679 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 402 mSDsluCounter, 3432 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:52,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [402 Valid, 3701 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:52,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10821 states. [2022-03-03 17:02:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10821 to 9000. [2022-03-03 17:02:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-03-03 17:02:52,843 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-03-03 17:02:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:52,843 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-03-03 17:02:52,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-03-03 17:02:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:52,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:52,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:52,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-03 17:02:52,854 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:52,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:52,855 INFO L85 PathProgramCache]: Analyzing trace with hash -701176852, now seen corresponding path program 243 times [2022-03-03 17:02:52,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:52,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536983126] [2022-03-03 17:02:52,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:52,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:52,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:52,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536983126] [2022-03-03 17:02:52,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536983126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:52,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:52,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:52,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921796530] [2022-03-03 17:02:52,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:52,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:52,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:52,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:52,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:52,955 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:53,373 INFO L93 Difference]: Finished difference Result 11280 states and 30378 transitions. [2022-03-03 17:02:53,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:53,374 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:53,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:53,390 INFO L225 Difference]: With dead ends: 11280 [2022-03-03 17:02:53,391 INFO L226 Difference]: Without dead ends: 10794 [2022-03-03 17:02:53,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:53,391 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 384 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:53,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 3555 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:53,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2022-03-03 17:02:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 8996. [2022-03-03 17:02:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:53,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-03 17:02:53,525 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-03 17:02:53,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:53,525 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-03 17:02:53,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:53,525 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-03 17:02:53,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:53,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:53,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:53,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-03 17:02:53,536 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:53,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:53,537 INFO L85 PathProgramCache]: Analyzing trace with hash -489296, now seen corresponding path program 244 times [2022-03-03 17:02:53,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:53,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262172077] [2022-03-03 17:02:53,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:53,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:53,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:53,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262172077] [2022-03-03 17:02:53,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262172077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:53,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:53,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:53,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546498218] [2022-03-03 17:02:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:53,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:53,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:53,645 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:54,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:54,167 INFO L93 Difference]: Finished difference Result 11316 states and 30473 transitions. [2022-03-03 17:02:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:54,168 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:54,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:54,188 INFO L225 Difference]: With dead ends: 11316 [2022-03-03 17:02:54,188 INFO L226 Difference]: Without dead ends: 10790 [2022-03-03 17:02:54,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:54,189 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 442 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 3043 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:54,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [442 Valid, 3043 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:54,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10790 states. [2022-03-03 17:02:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10790 to 8992. [2022-03-03 17:02:54,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:02:54,339 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:02:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:54,339 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:02:54,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:02:54,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:54,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:54,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:54,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-03 17:02:54,352 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:54,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:54,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2144565760, now seen corresponding path program 245 times [2022-03-03 17:02:54,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:54,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915592918] [2022-03-03 17:02:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:54,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:54,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:54,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915592918] [2022-03-03 17:02:54,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915592918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:54,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:54,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:54,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463792380] [2022-03-03 17:02:54,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:54,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:54,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:54,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:54,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:54,460 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:55,092 INFO L93 Difference]: Finished difference Result 11352 states and 30568 transitions. [2022-03-03 17:02:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:02:55,093 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:55,110 INFO L225 Difference]: With dead ends: 11352 [2022-03-03 17:02:55,110 INFO L226 Difference]: Without dead ends: 10786 [2022-03-03 17:02:55,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:02:55,111 INFO L933 BasicCegarLoop]: 350 mSDtfsCounter, 484 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:55,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [484 Valid, 3979 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:55,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10786 states. [2022-03-03 17:02:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10786 to 8988. [2022-03-03 17:02:55,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:02:55,248 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:02:55,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:55,249 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:02:55,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,249 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:02:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:55,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:55,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:55,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-03 17:02:55,260 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:55,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:55,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1180374412, now seen corresponding path program 246 times [2022-03-03 17:02:55,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:55,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3760143] [2022-03-03 17:02:55,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:55,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:55,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:55,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3760143] [2022-03-03 17:02:55,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3760143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:55,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:55,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:55,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390400667] [2022-03-03 17:02:55,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:55,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:55,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:55,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:55,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:55,362 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:56,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:56,064 INFO L93 Difference]: Finished difference Result 11352 states and 30564 transitions. [2022-03-03 17:02:56,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:02:56,064 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:56,081 INFO L225 Difference]: With dead ends: 11352 [2022-03-03 17:02:56,081 INFO L226 Difference]: Without dead ends: 10742 [2022-03-03 17:02:56,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1072 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 17:02:56,082 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 530 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:56,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [530 Valid, 4012 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:56,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10742 states. [2022-03-03 17:02:56,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10742 to 8980. [2022-03-03 17:02:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 8979 states have (on average 2.7007461855440473) internal successors, (24250), 8979 states have internal predecessors, (24250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 24250 transitions. [2022-03-03 17:02:56,223 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 24250 transitions. Word has length 109 [2022-03-03 17:02:56,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:56,223 INFO L470 AbstractCegarLoop]: Abstraction has 8980 states and 24250 transitions. [2022-03-03 17:02:56,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 24250 transitions. [2022-03-03 17:02:56,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:56,234 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:56,234 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:56,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-03 17:02:56,234 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:56,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:56,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1589513272, now seen corresponding path program 247 times [2022-03-03 17:02:56,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:56,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732148970] [2022-03-03 17:02:56,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:56,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:56,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:56,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:56,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732148970] [2022-03-03 17:02:56,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732148970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:56,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:56,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:56,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68543305] [2022-03-03 17:02:56,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:56,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:56,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:56,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:56,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:56,340 INFO L87 Difference]: Start difference. First operand 8980 states and 24250 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:56,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:56,690 INFO L93 Difference]: Finished difference Result 11166 states and 30060 transitions. [2022-03-03 17:02:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 17:02:56,690 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:56,705 INFO L225 Difference]: With dead ends: 11166 [2022-03-03 17:02:56,705 INFO L226 Difference]: Without dead ends: 10681 [2022-03-03 17:02:56,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:02:56,705 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 490 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:56,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [490 Valid, 1960 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:56,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10681 states. [2022-03-03 17:02:56,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10681 to 9004. [2022-03-03 17:02:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9004 states, 9003 states have (on average 2.700433188937021) internal successors, (24312), 9003 states have internal predecessors, (24312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:56,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9004 states to 9004 states and 24312 transitions. [2022-03-03 17:02:56,825 INFO L78 Accepts]: Start accepts. Automaton has 9004 states and 24312 transitions. Word has length 109 [2022-03-03 17:02:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:56,826 INFO L470 AbstractCegarLoop]: Abstraction has 9004 states and 24312 transitions. [2022-03-03 17:02:56,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 9004 states and 24312 transitions. [2022-03-03 17:02:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:56,837 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:56,837 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:56,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-03 17:02:56,837 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:56,837 INFO L85 PathProgramCache]: Analyzing trace with hash -907892618, now seen corresponding path program 248 times [2022-03-03 17:02:56,837 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:56,837 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918703329] [2022-03-03 17:02:56,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:56,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:56,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:56,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918703329] [2022-03-03 17:02:56,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918703329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:56,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:56,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:56,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557412152] [2022-03-03 17:02:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:56,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:56,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:56,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:56,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:56,935 INFO L87 Difference]: Start difference. First operand 9004 states and 24312 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:57,309 INFO L93 Difference]: Finished difference Result 11140 states and 29993 transitions. [2022-03-03 17:02:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:02:57,309 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:57,326 INFO L225 Difference]: With dead ends: 11140 [2022-03-03 17:02:57,326 INFO L226 Difference]: Without dead ends: 10654 [2022-03-03 17:02:57,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:02:57,327 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 534 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:57,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 3123 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10654 states. [2022-03-03 17:02:57,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10654 to 9000. [2022-03-03 17:02:57,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9000 states, 8999 states have (on average 2.7004111567951994) internal successors, (24301), 8999 states have internal predecessors, (24301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:57,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9000 states to 9000 states and 24301 transitions. [2022-03-03 17:02:57,472 INFO L78 Accepts]: Start accepts. Automaton has 9000 states and 24301 transitions. Word has length 109 [2022-03-03 17:02:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:57,472 INFO L470 AbstractCegarLoop]: Abstraction has 9000 states and 24301 transitions. [2022-03-03 17:02:57,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 9000 states and 24301 transitions. [2022-03-03 17:02:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:57,484 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:57,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:57,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-03 17:02:57,485 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:57,485 INFO L85 PathProgramCache]: Analyzing trace with hash -207205062, now seen corresponding path program 249 times [2022-03-03 17:02:57,485 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:57,485 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584298739] [2022-03-03 17:02:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:57,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:57,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:57,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584298739] [2022-03-03 17:02:57,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584298739] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:57,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:57,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:57,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828256457] [2022-03-03 17:02:57,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:57,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:57,596 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:57,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:57,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:57,596 INFO L87 Difference]: Start difference. First operand 9000 states and 24301 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:58,097 INFO L93 Difference]: Finished difference Result 11176 states and 30088 transitions. [2022-03-03 17:02:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:58,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:58,114 INFO L225 Difference]: With dead ends: 11176 [2022-03-03 17:02:58,115 INFO L226 Difference]: Without dead ends: 10650 [2022-03-03 17:02:58,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:02:58,115 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 605 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:58,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2839 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2022-03-03 17:02:58,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 8996. [2022-03-03 17:02:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8996 states, 8995 states have (on average 2.700389105058366) internal successors, (24290), 8995 states have internal predecessors, (24290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8996 states to 8996 states and 24290 transitions. [2022-03-03 17:02:58,292 INFO L78 Accepts]: Start accepts. Automaton has 8996 states and 24290 transitions. Word has length 109 [2022-03-03 17:02:58,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:58,292 INFO L470 AbstractCegarLoop]: Abstraction has 8996 states and 24290 transitions. [2022-03-03 17:02:58,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand 8996 states and 24290 transitions. [2022-03-03 17:02:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:58,306 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:58,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:58,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-03 17:02:58,307 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:58,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:58,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1943685770, now seen corresponding path program 250 times [2022-03-03 17:02:58,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:58,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323678731] [2022-03-03 17:02:58,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:58,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:58,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:58,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323678731] [2022-03-03 17:02:58,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323678731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:58,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:58,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:58,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102358643] [2022-03-03 17:02:58,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:58,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:58,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:58,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:58,407 INFO L87 Difference]: Start difference. First operand 8996 states and 24290 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:58,975 INFO L93 Difference]: Finished difference Result 11212 states and 30183 transitions. [2022-03-03 17:02:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:02:58,976 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:02:58,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:58,991 INFO L225 Difference]: With dead ends: 11212 [2022-03-03 17:02:58,991 INFO L226 Difference]: Without dead ends: 10646 [2022-03-03 17:02:58,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 818 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:02:58,992 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 660 mSDsluCounter, 3510 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:58,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 3825 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:59,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10646 states. [2022-03-03 17:02:59,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10646 to 8992. [2022-03-03 17:02:59,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8992 states, 8991 states have (on average 2.700367033700367) internal successors, (24279), 8991 states have internal predecessors, (24279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:59,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8992 states to 8992 states and 24279 transitions. [2022-03-03 17:02:59,122 INFO L78 Accepts]: Start accepts. Automaton has 8992 states and 24279 transitions. Word has length 109 [2022-03-03 17:02:59,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:59,122 INFO L470 AbstractCegarLoop]: Abstraction has 8992 states and 24279 transitions. [2022-03-03 17:02:59,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8992 states and 24279 transitions. [2022-03-03 17:02:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:02:59,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:59,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:59,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-03 17:02:59,134 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:59,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:59,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1387090178, now seen corresponding path program 251 times [2022-03-03 17:02:59,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:59,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162265330] [2022-03-03 17:02:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:59,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:59,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:59,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162265330] [2022-03-03 17:02:59,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162265330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:59,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:59,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:02:59,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732701925] [2022-03-03 17:02:59,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:59,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:02:59,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:59,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:02:59,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:02:59,238 INFO L87 Difference]: Start difference. First operand 8992 states and 24279 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:00,007 INFO L93 Difference]: Finished difference Result 11248 states and 30278 transitions. [2022-03-03 17:03:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 17:03:00,008 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:00,026 INFO L225 Difference]: With dead ends: 11248 [2022-03-03 17:03:00,026 INFO L226 Difference]: Without dead ends: 10642 [2022-03-03 17:03:00,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=847, Invalid=2935, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 17:03:00,027 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 742 mSDsluCounter, 2883 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3211 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:00,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [742 Valid, 3211 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:00,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10642 states. [2022-03-03 17:03:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 8988. [2022-03-03 17:03:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 2.7003449426950037) internal successors, (24268), 8987 states have internal predecessors, (24268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 24268 transitions. [2022-03-03 17:03:00,158 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 24268 transitions. Word has length 109 [2022-03-03 17:03:00,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:00,158 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 24268 transitions. [2022-03-03 17:03:00,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:00,158 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 24268 transitions. [2022-03-03 17:03:00,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:00,168 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:00,168 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:00,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-03 17:03:00,168 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:00,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:00,169 INFO L85 PathProgramCache]: Analyzing trace with hash 848592424, now seen corresponding path program 252 times [2022-03-03 17:03:00,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:00,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545815249] [2022-03-03 17:03:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:00,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:00,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:00,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545815249] [2022-03-03 17:03:00,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545815249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:00,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:00,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:00,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837378173] [2022-03-03 17:03:00,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:00,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:00,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:00,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:00,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:00,274 INFO L87 Difference]: Start difference. First operand 8988 states and 24268 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:01,112 INFO L93 Difference]: Finished difference Result 11861 states and 31739 transitions. [2022-03-03 17:03:01,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 17:03:01,112 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:01,128 INFO L225 Difference]: With dead ends: 11861 [2022-03-03 17:03:01,128 INFO L226 Difference]: Without dead ends: 10915 [2022-03-03 17:03:01,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=995, Invalid=3165, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:03:01,129 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 954 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:01,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 3574 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:01,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2022-03-03 17:03:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 8724. [2022-03-03 17:03:01,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8724 states, 8723 states have (on average 2.702166685773243) internal successors, (23571), 8723 states have internal predecessors, (23571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8724 states to 8724 states and 23571 transitions. [2022-03-03 17:03:01,272 INFO L78 Accepts]: Start accepts. Automaton has 8724 states and 23571 transitions. Word has length 109 [2022-03-03 17:03:01,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:01,272 INFO L470 AbstractCegarLoop]: Abstraction has 8724 states and 23571 transitions. [2022-03-03 17:03:01,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8724 states and 23571 transitions. [2022-03-03 17:03:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:01,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:01,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:01,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-03 17:03:01,284 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:01,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2023938288, now seen corresponding path program 1 times [2022-03-03 17:03:01,284 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:01,284 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775911551] [2022-03-03 17:03:01,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:01,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:01,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:01,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775911551] [2022-03-03 17:03:01,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775911551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:01,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:01,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:03:01,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672376262] [2022-03-03 17:03:01,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:01,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:03:01,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:01,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:03:01,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:03:01,298 INFO L87 Difference]: Start difference. First operand 8724 states and 23571 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:01,329 INFO L93 Difference]: Finished difference Result 7930 states and 20990 transitions. [2022-03-03 17:03:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:03:01,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:01,340 INFO L225 Difference]: With dead ends: 7930 [2022-03-03 17:03:01,340 INFO L226 Difference]: Without dead ends: 7930 [2022-03-03 17:03:01,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:03:01,340 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 123 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:01,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 203 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:03:01,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7930 states. [2022-03-03 17:03:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7930 to 7930. [2022-03-03 17:03:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7930 states, 7929 states have (on average 2.6472442931012736) internal successors, (20990), 7929 states have internal predecessors, (20990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7930 states to 7930 states and 20990 transitions. [2022-03-03 17:03:01,446 INFO L78 Accepts]: Start accepts. Automaton has 7930 states and 20990 transitions. Word has length 109 [2022-03-03 17:03:01,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:01,447 INFO L470 AbstractCegarLoop]: Abstraction has 7930 states and 20990 transitions. [2022-03-03 17:03:01,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7930 states and 20990 transitions. [2022-03-03 17:03:01,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:01,457 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:01,457 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:01,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-03 17:03:01,458 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:01,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:01,458 INFO L85 PathProgramCache]: Analyzing trace with hash 118742352, now seen corresponding path program 1 times [2022-03-03 17:03:01,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:01,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124522597] [2022-03-03 17:03:01,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:01,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:01,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:01,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124522597] [2022-03-03 17:03:01,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124522597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:01,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:01,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:01,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372607297] [2022-03-03 17:03:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:01,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:01,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:01,559 INFO L87 Difference]: Start difference. First operand 7930 states and 20990 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:02,523 INFO L93 Difference]: Finished difference Result 9314 states and 24487 transitions. [2022-03-03 17:03:02,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 17:03:02,524 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:02,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:02,535 INFO L225 Difference]: With dead ends: 9314 [2022-03-03 17:03:02,535 INFO L226 Difference]: Without dead ends: 8518 [2022-03-03 17:03:02,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1028, Invalid=3394, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:03:02,536 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 611 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 3534 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:02,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 3534 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:02,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8518 states. [2022-03-03 17:03:02,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8518 to 7730. [2022-03-03 17:03:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.644585327985509) internal successors, (20440), 7729 states have internal predecessors, (20440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:02,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20440 transitions. [2022-03-03 17:03:02,637 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20440 transitions. Word has length 109 [2022-03-03 17:03:02,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:02,637 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20440 transitions. [2022-03-03 17:03:02,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:02,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20440 transitions. [2022-03-03 17:03:02,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:02,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:02,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:02,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-03 17:03:02,646 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:02,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:02,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1474585368, now seen corresponding path program 2 times [2022-03-03 17:03:02,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:02,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694232026] [2022-03-03 17:03:02,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:02,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:02,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:02,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694232026] [2022-03-03 17:03:02,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694232026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:02,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:02,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:02,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336951097] [2022-03-03 17:03:02,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:02,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:02,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:02,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:02,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:02,756 INFO L87 Difference]: Start difference. First operand 7730 states and 20440 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:03,172 INFO L93 Difference]: Finished difference Result 8756 states and 23083 transitions. [2022-03-03 17:03:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 17:03:03,173 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:03,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:03,185 INFO L225 Difference]: With dead ends: 8756 [2022-03-03 17:03:03,185 INFO L226 Difference]: Without dead ends: 8277 [2022-03-03 17:03:03,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:03:03,185 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 218 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:03,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2691 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:03,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-03-03 17:03:03,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 7746. [2022-03-03 17:03:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7746 states, 7745 states have (on average 2.644286636539703) internal successors, (20480), 7745 states have internal predecessors, (20480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7746 states to 7746 states and 20480 transitions. [2022-03-03 17:03:03,290 INFO L78 Accepts]: Start accepts. Automaton has 7746 states and 20480 transitions. Word has length 109 [2022-03-03 17:03:03,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:03,290 INFO L470 AbstractCegarLoop]: Abstraction has 7746 states and 20480 transitions. [2022-03-03 17:03:03,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,290 INFO L276 IsEmpty]: Start isEmpty. Operand 7746 states and 20480 transitions. [2022-03-03 17:03:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:03,298 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:03,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:03,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-03 17:03:03,298 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1192858810, now seen corresponding path program 3 times [2022-03-03 17:03:03,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:03,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765043718] [2022-03-03 17:03:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:03,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:03,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:03,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765043718] [2022-03-03 17:03:03,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765043718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:03,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:03,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:03,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500564667] [2022-03-03 17:03:03,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:03,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:03,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:03,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:03,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:03,395 INFO L87 Difference]: Start difference. First operand 7746 states and 20480 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:03,777 INFO L93 Difference]: Finished difference Result 8734 states and 23027 transitions. [2022-03-03 17:03:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:03,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:03,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:03,790 INFO L225 Difference]: With dead ends: 8734 [2022-03-03 17:03:03,790 INFO L226 Difference]: Without dead ends: 8254 [2022-03-03 17:03:03,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1163, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:03,790 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 233 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:03,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2799 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:03,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8254 states. [2022-03-03 17:03:03,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8254 to 7742. [2022-03-03 17:03:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7742 states, 7741 states have (on average 2.6442320113680404) internal successors, (20469), 7741 states have internal predecessors, (20469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 20469 transitions. [2022-03-03 17:03:03,899 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 20469 transitions. Word has length 109 [2022-03-03 17:03:03,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:03,899 INFO L470 AbstractCegarLoop]: Abstraction has 7742 states and 20469 transitions. [2022-03-03 17:03:03,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 20469 transitions. [2022-03-03 17:03:03,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:03,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:03,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:03,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-03 17:03:03,908 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:03,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1981051146, now seen corresponding path program 4 times [2022-03-03 17:03:03,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:03,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499113552] [2022-03-03 17:03:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:03,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:04,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:04,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499113552] [2022-03-03 17:03:04,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499113552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:04,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:04,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:04,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014757520] [2022-03-03 17:03:04,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:04,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:04,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:04,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:04,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:04,005 INFO L87 Difference]: Start difference. First operand 7742 states and 20469 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:04,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:04,477 INFO L93 Difference]: Finished difference Result 8770 states and 23122 transitions. [2022-03-03 17:03:04,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:04,477 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:04,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:04,488 INFO L225 Difference]: With dead ends: 8770 [2022-03-03 17:03:04,489 INFO L226 Difference]: Without dead ends: 8250 [2022-03-03 17:03:04,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=446, Invalid=1716, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:03:04,489 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 301 mSDsluCounter, 2652 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:04,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2873 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:04,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8250 states. [2022-03-03 17:03:04,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8250 to 7738. [2022-03-03 17:03:04,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7738 states, 7737 states have (on average 2.6441773297143594) internal successors, (20458), 7737 states have internal predecessors, (20458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:04,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7738 states to 7738 states and 20458 transitions. [2022-03-03 17:03:04,598 INFO L78 Accepts]: Start accepts. Automaton has 7738 states and 20458 transitions. Word has length 109 [2022-03-03 17:03:04,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:04,598 INFO L470 AbstractCegarLoop]: Abstraction has 7738 states and 20458 transitions. [2022-03-03 17:03:04,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:04,598 INFO L276 IsEmpty]: Start isEmpty. Operand 7738 states and 20458 transitions. [2022-03-03 17:03:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:04,607 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:04,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:04,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-03 17:03:04,608 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:04,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:04,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1455915610, now seen corresponding path program 5 times [2022-03-03 17:03:04,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:04,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522394376] [2022-03-03 17:03:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:04,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:04,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:04,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522394376] [2022-03-03 17:03:04,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522394376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:04,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:04,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:04,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131761870] [2022-03-03 17:03:04,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:04,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:04,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:04,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:04,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:04,707 INFO L87 Difference]: Start difference. First operand 7738 states and 20458 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:05,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:05,291 INFO L93 Difference]: Finished difference Result 8806 states and 23217 transitions. [2022-03-03 17:03:05,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:03:05,291 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:05,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:05,302 INFO L225 Difference]: With dead ends: 8806 [2022-03-03 17:03:05,302 INFO L226 Difference]: Without dead ends: 8246 [2022-03-03 17:03:05,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=623, Invalid=2347, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:03:05,303 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 361 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 3442 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:05,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [361 Valid, 3442 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:05,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8246 states. [2022-03-03 17:03:05,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8246 to 7734. [2022-03-03 17:03:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7734 states, 7733 states have (on average 2.6441225914910125) internal successors, (20447), 7733 states have internal predecessors, (20447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:05,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7734 states to 7734 states and 20447 transitions. [2022-03-03 17:03:05,410 INFO L78 Accepts]: Start accepts. Automaton has 7734 states and 20447 transitions. Word has length 109 [2022-03-03 17:03:05,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:05,410 INFO L470 AbstractCegarLoop]: Abstraction has 7734 states and 20447 transitions. [2022-03-03 17:03:05,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 7734 states and 20447 transitions. [2022-03-03 17:03:05,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:05,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:05,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:05,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-03 17:03:05,419 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:05,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:05,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2108208876, now seen corresponding path program 6 times [2022-03-03 17:03:05,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:05,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348265234] [2022-03-03 17:03:05,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:05,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:05,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:05,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:05,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348265234] [2022-03-03 17:03:05,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348265234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:05,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:05,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:05,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039257972] [2022-03-03 17:03:05,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:05,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:05,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:05,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:05,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:05,522 INFO L87 Difference]: Start difference. First operand 7734 states and 20447 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:06,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:06,235 INFO L93 Difference]: Finished difference Result 8802 states and 23202 transitions. [2022-03-03 17:03:06,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 17:03:06,235 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:06,245 INFO L225 Difference]: With dead ends: 8802 [2022-03-03 17:03:06,245 INFO L226 Difference]: Without dead ends: 8182 [2022-03-03 17:03:06,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:03:06,246 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 430 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:06,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 3405 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2022-03-03 17:03:06,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 7710. [2022-03-03 17:03:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.6443118433000388) internal successors, (20385), 7709 states have internal predecessors, (20385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20385 transitions. [2022-03-03 17:03:06,341 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20385 transitions. Word has length 109 [2022-03-03 17:03:06,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:06,342 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20385 transitions. [2022-03-03 17:03:06,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:06,342 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20385 transitions. [2022-03-03 17:03:06,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:06,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:06,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:06,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-03 17:03:06,351 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:06,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:06,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1960844258, now seen corresponding path program 7 times [2022-03-03 17:03:06,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:06,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071751996] [2022-03-03 17:03:06,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:06,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:06,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:06,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071751996] [2022-03-03 17:03:06,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071751996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:06,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:06,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:06,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577396561] [2022-03-03 17:03:06,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:06,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:06,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:06,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:06,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:06,456 INFO L87 Difference]: Start difference. First operand 7710 states and 20385 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:06,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:06,884 INFO L93 Difference]: Finished difference Result 8976 states and 23688 transitions. [2022-03-03 17:03:06,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:03:06,884 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:06,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:06,896 INFO L225 Difference]: With dead ends: 8976 [2022-03-03 17:03:06,897 INFO L226 Difference]: Without dead ends: 8497 [2022-03-03 17:03:06,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=984, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:03:06,897 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 228 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:06,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2660 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8497 states. [2022-03-03 17:03:06,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8497 to 7730. [2022-03-03 17:03:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6440677966101696) internal successors, (20436), 7729 states have internal predecessors, (20436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:07,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20436 transitions. [2022-03-03 17:03:07,013 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20436 transitions. Word has length 109 [2022-03-03 17:03:07,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:07,013 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20436 transitions. [2022-03-03 17:03:07,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:07,014 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20436 transitions. [2022-03-03 17:03:07,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:07,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:07,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:07,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-03 17:03:07,023 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:07,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:07,023 INFO L85 PathProgramCache]: Analyzing trace with hash -706599920, now seen corresponding path program 8 times [2022-03-03 17:03:07,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:07,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589782737] [2022-03-03 17:03:07,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:07,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:07,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:07,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589782737] [2022-03-03 17:03:07,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589782737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:07,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:07,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:07,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455989732] [2022-03-03 17:03:07,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:07,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:07,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:07,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:07,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:07,124 INFO L87 Difference]: Start difference. First operand 7730 states and 20436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:07,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:07,571 INFO L93 Difference]: Finished difference Result 8942 states and 23599 transitions. [2022-03-03 17:03:07,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:07,572 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:07,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:07,583 INFO L225 Difference]: With dead ends: 8942 [2022-03-03 17:03:07,583 INFO L226 Difference]: Without dead ends: 8462 [2022-03-03 17:03:07,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1155, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:07,584 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 222 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 3123 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:07,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 3123 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:07,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8462 states. [2022-03-03 17:03:07,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8462 to 7726. [2022-03-03 17:03:07,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.644012944983819) internal successors, (20425), 7725 states have internal predecessors, (20425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20425 transitions. [2022-03-03 17:03:07,690 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20425 transitions. Word has length 109 [2022-03-03 17:03:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:07,690 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20425 transitions. [2022-03-03 17:03:07,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:07,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20425 transitions. [2022-03-03 17:03:07,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:07,699 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:07,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:07,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-03 17:03:07,699 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:07,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1827657260, now seen corresponding path program 9 times [2022-03-03 17:03:07,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:07,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134119735] [2022-03-03 17:03:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:07,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:07,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:07,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134119735] [2022-03-03 17:03:07,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134119735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:07,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:07,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:07,801 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742726467] [2022-03-03 17:03:07,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:07,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:07,801 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:07,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:07,802 INFO L87 Difference]: Start difference. First operand 7726 states and 20425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:08,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:08,326 INFO L93 Difference]: Finished difference Result 8978 states and 23694 transitions. [2022-03-03 17:03:08,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:08,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:08,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:08,339 INFO L225 Difference]: With dead ends: 8978 [2022-03-03 17:03:08,339 INFO L226 Difference]: Without dead ends: 8458 [2022-03-03 17:03:08,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=1697, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:03:08,340 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 292 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:08,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 3220 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:08,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2022-03-03 17:03:08,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7722. [2022-03-03 17:03:08,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6439580365237663) internal successors, (20414), 7721 states have internal predecessors, (20414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20414 transitions. [2022-03-03 17:03:08,456 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20414 transitions. Word has length 109 [2022-03-03 17:03:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:08,457 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20414 transitions. [2022-03-03 17:03:08,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20414 transitions. [2022-03-03 17:03:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:08,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:08,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:08,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-03 17:03:08,466 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:08,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1942174500, now seen corresponding path program 10 times [2022-03-03 17:03:08,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:08,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274704315] [2022-03-03 17:03:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:08,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:08,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:08,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274704315] [2022-03-03 17:03:08,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274704315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:08,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:08,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:08,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802003658] [2022-03-03 17:03:08,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:08,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:08,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:08,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:08,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:08,568 INFO L87 Difference]: Start difference. First operand 7722 states and 20414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:09,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:09,164 INFO L93 Difference]: Finished difference Result 9206 states and 24293 transitions. [2022-03-03 17:03:09,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:03:09,164 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:09,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:09,176 INFO L225 Difference]: With dead ends: 9206 [2022-03-03 17:03:09,176 INFO L226 Difference]: Without dead ends: 8646 [2022-03-03 17:03:09,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:03:09,177 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 380 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:09,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 3058 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:09,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-03-03 17:03:09,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7718. [2022-03-03 17:03:09,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643903071141635) internal successors, (20403), 7717 states have internal predecessors, (20403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20403 transitions. [2022-03-03 17:03:09,293 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20403 transitions. Word has length 109 [2022-03-03 17:03:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:09,293 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20403 transitions. [2022-03-03 17:03:09,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20403 transitions. [2022-03-03 17:03:09,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:09,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:09,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:09,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-03 17:03:09,303 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:09,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:09,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1751861096, now seen corresponding path program 11 times [2022-03-03 17:03:09,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:09,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488463949] [2022-03-03 17:03:09,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:09,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:09,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:09,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:09,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488463949] [2022-03-03 17:03:09,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488463949] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:09,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:09,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:09,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268047882] [2022-03-03 17:03:09,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:09,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:09,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:09,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:09,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:09,408 INFO L87 Difference]: Start difference. First operand 7718 states and 20403 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:09,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:09,865 INFO L93 Difference]: Finished difference Result 8952 states and 23618 transitions. [2022-03-03 17:03:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:09,865 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:09,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:09,877 INFO L225 Difference]: With dead ends: 8952 [2022-03-03 17:03:09,877 INFO L226 Difference]: Without dead ends: 8473 [2022-03-03 17:03:09,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=1040, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:09,877 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 230 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:09,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2712 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8473 states. [2022-03-03 17:03:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8473 to 7730. [2022-03-03 17:03:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-03-03 17:03:09,980 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-03-03 17:03:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:09,980 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-03-03 17:03:09,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:09,980 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-03-03 17:03:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:09,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:09,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:09,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-03 17:03:09,989 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:09,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:09,989 INFO L85 PathProgramCache]: Analyzing trace with hash -915583082, now seen corresponding path program 12 times [2022-03-03 17:03:09,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:09,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728391185] [2022-03-03 17:03:09,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:09,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:10,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:10,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728391185] [2022-03-03 17:03:10,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728391185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:10,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:10,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:10,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880575325] [2022-03-03 17:03:10,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:10,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:10,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:10,095 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:10,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:10,532 INFO L93 Difference]: Finished difference Result 8910 states and 23507 transitions. [2022-03-03 17:03:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:10,533 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:10,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:10,546 INFO L225 Difference]: With dead ends: 8910 [2022-03-03 17:03:10,546 INFO L226 Difference]: Without dead ends: 8430 [2022-03-03 17:03:10,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:10,546 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 230 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:10,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2916 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8430 states. [2022-03-03 17:03:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8430 to 7726. [2022-03-03 17:03:10,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:10,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-03-03 17:03:10,657 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-03-03 17:03:10,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:10,657 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-03-03 17:03:10,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:10,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-03-03 17:03:10,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:10,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:10,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:10,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-03 17:03:10,667 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:10,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:10,667 INFO L85 PathProgramCache]: Analyzing trace with hash -2036640422, now seen corresponding path program 13 times [2022-03-03 17:03:10,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:10,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425164470] [2022-03-03 17:03:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:10,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:10,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:10,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:10,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425164470] [2022-03-03 17:03:10,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425164470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:10,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:10,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:10,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069595356] [2022-03-03 17:03:10,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:10,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:10,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:10,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:10,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:10,767 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:11,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:11,263 INFO L93 Difference]: Finished difference Result 9078 states and 23949 transitions. [2022-03-03 17:03:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:03:11,264 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:11,276 INFO L225 Difference]: With dead ends: 9078 [2022-03-03 17:03:11,276 INFO L226 Difference]: Without dead ends: 8558 [2022-03-03 17:03:11,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1617, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:03:11,277 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 303 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:11,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 3199 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:11,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-03-03 17:03:11,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7722. [2022-03-03 17:03:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:11,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-03-03 17:03:11,387 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-03-03 17:03:11,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:11,387 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-03-03 17:03:11,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:11,388 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-03-03 17:03:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:11,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:11,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:11,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-03 17:03:11,397 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:11,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1964010698, now seen corresponding path program 14 times [2022-03-03 17:03:11,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:11,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238503119] [2022-03-03 17:03:11,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:11,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:11,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:11,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238503119] [2022-03-03 17:03:11,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238503119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:11,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:11,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:11,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027905919] [2022-03-03 17:03:11,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:11,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:11,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:11,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:11,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:11,499 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:12,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:12,027 INFO L93 Difference]: Finished difference Result 8956 states and 23600 transitions. [2022-03-03 17:03:12,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 17:03:12,028 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:12,040 INFO L225 Difference]: With dead ends: 8956 [2022-03-03 17:03:12,040 INFO L226 Difference]: Without dead ends: 8434 [2022-03-03 17:03:12,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=497, Invalid=1309, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:03:12,041 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 279 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:12,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2734 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8434 states. [2022-03-03 17:03:12,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8434 to 7726. [2022-03-03 17:03:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.6429773462783173) internal successors, (20417), 7725 states have internal predecessors, (20417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20417 transitions. [2022-03-03 17:03:12,164 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20417 transitions. Word has length 109 [2022-03-03 17:03:12,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:12,164 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20417 transitions. [2022-03-03 17:03:12,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:12,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20417 transitions. [2022-03-03 17:03:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:12,176 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:12,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:12,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-03 17:03:12,176 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:12,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash 773041248, now seen corresponding path program 15 times [2022-03-03 17:03:12,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:12,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716880861] [2022-03-03 17:03:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:12,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:12,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:12,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:12,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716880861] [2022-03-03 17:03:12,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716880861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:12,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:12,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:12,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268298815] [2022-03-03 17:03:12,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:12,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:12,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:12,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:12,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:12,277 INFO L87 Difference]: Start difference. First operand 7726 states and 20417 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:12,715 INFO L93 Difference]: Finished difference Result 8888 states and 23434 transitions. [2022-03-03 17:03:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:12,715 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:12,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:12,727 INFO L225 Difference]: With dead ends: 8888 [2022-03-03 17:03:12,727 INFO L226 Difference]: Without dead ends: 8409 [2022-03-03 17:03:12,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 17:03:12,728 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 236 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:12,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2544 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:12,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2022-03-03 17:03:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 7730. [2022-03-03 17:03:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.6425152024841507) internal successors, (20424), 7729 states have internal predecessors, (20424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:12,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20424 transitions. [2022-03-03 17:03:12,840 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20424 transitions. Word has length 109 [2022-03-03 17:03:12,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:12,840 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20424 transitions. [2022-03-03 17:03:12,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:12,840 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20424 transitions. [2022-03-03 17:03:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:12,849 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:12,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:12,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-03 17:03:12,849 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:12,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:12,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1894402930, now seen corresponding path program 16 times [2022-03-03 17:03:12,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:12,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679428472] [2022-03-03 17:03:12,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:12,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:12,947 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:12,947 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679428472] [2022-03-03 17:03:12,947 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679428472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:12,947 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:12,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:12,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478714300] [2022-03-03 17:03:12,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:12,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:12,948 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:12,948 INFO L87 Difference]: Start difference. First operand 7730 states and 20424 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:13,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:13,326 INFO L93 Difference]: Finished difference Result 8838 states and 23301 transitions. [2022-03-03 17:03:13,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:13,327 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:13,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:13,338 INFO L225 Difference]: With dead ends: 8838 [2022-03-03 17:03:13,339 INFO L226 Difference]: Without dead ends: 8346 [2022-03-03 17:03:13,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=1091, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:13,339 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 224 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:13,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2540 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:13,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8346 states. [2022-03-03 17:03:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8346 to 7714. [2022-03-03 17:03:13,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-03-03 17:03:13,435 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-03-03 17:03:13,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:13,436 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-03-03 17:03:13,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:13,436 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-03-03 17:03:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:13,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:13,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:13,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-03 17:03:13,444 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:13,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:13,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1140279682, now seen corresponding path program 17 times [2022-03-03 17:03:13,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:13,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195906351] [2022-03-03 17:03:13,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:13,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:13,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:13,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195906351] [2022-03-03 17:03:13,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195906351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:13,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:13,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:13,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379493200] [2022-03-03 17:03:13,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:13,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:13,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:13,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:13,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:13,555 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:13,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:13,982 INFO L93 Difference]: Finished difference Result 8820 states and 23255 transitions. [2022-03-03 17:03:13,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:03:13,982 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:13,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:13,993 INFO L225 Difference]: With dead ends: 8820 [2022-03-03 17:03:13,993 INFO L226 Difference]: Without dead ends: 8341 [2022-03-03 17:03:13,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:03:13,994 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 230 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:13,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2889 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:14,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8341 states. [2022-03-03 17:03:14,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8341 to 7730. [2022-03-03 17:03:14,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 2.64355026523483) internal successors, (20432), 7729 states have internal predecessors, (20432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 20432 transitions. [2022-03-03 17:03:14,103 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 20432 transitions. Word has length 109 [2022-03-03 17:03:14,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:14,103 INFO L470 AbstractCegarLoop]: Abstraction has 7730 states and 20432 transitions. [2022-03-03 17:03:14,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 20432 transitions. [2022-03-03 17:03:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:14,112 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:14,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:14,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-03 17:03:14,112 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:14,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1527164496, now seen corresponding path program 18 times [2022-03-03 17:03:14,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:14,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086256420] [2022-03-03 17:03:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:14,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:14,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086256420] [2022-03-03 17:03:14,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086256420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:14,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:14,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:14,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109929973] [2022-03-03 17:03:14,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:14,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:14,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:14,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:14,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:14,221 INFO L87 Difference]: Start difference. First operand 7730 states and 20432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:14,648 INFO L93 Difference]: Finished difference Result 8798 states and 23199 transitions. [2022-03-03 17:03:14,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:14,648 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:14,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:14,660 INFO L225 Difference]: With dead ends: 8798 [2022-03-03 17:03:14,660 INFO L226 Difference]: Without dead ends: 8318 [2022-03-03 17:03:14,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1161, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:14,661 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 249 mSDsluCounter, 2903 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 3098 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:14,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 3098 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:14,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8318 states. [2022-03-03 17:03:14,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8318 to 7726. [2022-03-03 17:03:14,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7726 states, 7725 states have (on average 2.643495145631068) internal successors, (20421), 7725 states have internal predecessors, (20421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:14,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7726 states to 7726 states and 20421 transitions. [2022-03-03 17:03:14,771 INFO L78 Accepts]: Start accepts. Automaton has 7726 states and 20421 transitions. Word has length 109 [2022-03-03 17:03:14,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:14,771 INFO L470 AbstractCegarLoop]: Abstraction has 7726 states and 20421 transitions. [2022-03-03 17:03:14,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:14,771 INFO L276 IsEmpty]: Start isEmpty. Operand 7726 states and 20421 transitions. [2022-03-03 17:03:14,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:14,780 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:14,780 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:14,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-03 17:03:14,780 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:14,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:14,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1646745460, now seen corresponding path program 19 times [2022-03-03 17:03:14,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:14,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427718755] [2022-03-03 17:03:14,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:14,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:14,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:14,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427718755] [2022-03-03 17:03:14,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427718755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:14,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:14,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:14,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825650379] [2022-03-03 17:03:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:14,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:14,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:14,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:14,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:14,885 INFO L87 Difference]: Start difference. First operand 7726 states and 20421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:15,395 INFO L93 Difference]: Finished difference Result 8834 states and 23294 transitions. [2022-03-03 17:03:15,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:15,396 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:15,407 INFO L225 Difference]: With dead ends: 8834 [2022-03-03 17:03:15,408 INFO L226 Difference]: Without dead ends: 8314 [2022-03-03 17:03:15,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1708, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:03:15,408 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 319 mSDsluCounter, 2987 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:15,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 3189 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8314 states. [2022-03-03 17:03:15,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8314 to 7722. [2022-03-03 17:03:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7722 states, 7721 states have (on average 2.6434399689159433) internal successors, (20410), 7721 states have internal predecessors, (20410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7722 states to 7722 states and 20410 transitions. [2022-03-03 17:03:15,517 INFO L78 Accepts]: Start accepts. Automaton has 7722 states and 20410 transitions. Word has length 109 [2022-03-03 17:03:15,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:15,518 INFO L470 AbstractCegarLoop]: Abstraction has 7722 states and 20410 transitions. [2022-03-03 17:03:15,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:15,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7722 states and 20410 transitions. [2022-03-03 17:03:15,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:15,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:15,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:15,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-03 17:03:15,526 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:15,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:15,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1121609924, now seen corresponding path program 20 times [2022-03-03 17:03:15,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:15,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805298453] [2022-03-03 17:03:15,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:15,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:15,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:15,629 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805298453] [2022-03-03 17:03:15,629 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805298453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:15,629 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:15,629 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:15,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818487129] [2022-03-03 17:03:15,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:15,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:15,630 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:15,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:15,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:15,630 INFO L87 Difference]: Start difference. First operand 7722 states and 20410 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:16,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:16,260 INFO L93 Difference]: Finished difference Result 8870 states and 23389 transitions. [2022-03-03 17:03:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:03:16,260 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:16,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:16,273 INFO L225 Difference]: With dead ends: 8870 [2022-03-03 17:03:16,273 INFO L226 Difference]: Without dead ends: 8310 [2022-03-03 17:03:16,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=637, Invalid=2333, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:03:16,274 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 390 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:16,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 3044 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:16,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2022-03-03 17:03:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 7718. [2022-03-03 17:03:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7718 states, 7717 states have (on average 2.643384735000648) internal successors, (20399), 7717 states have internal predecessors, (20399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:16,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 20399 transitions. [2022-03-03 17:03:16,402 INFO L78 Accepts]: Start accepts. Automaton has 7718 states and 20399 transitions. Word has length 109 [2022-03-03 17:03:16,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:16,403 INFO L470 AbstractCegarLoop]: Abstraction has 7718 states and 20399 transitions. [2022-03-03 17:03:16,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:16,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7718 states and 20399 transitions. [2022-03-03 17:03:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:16,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:16,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:16,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-03 17:03:16,412 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:16,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:16,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1773903190, now seen corresponding path program 21 times [2022-03-03 17:03:16,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:16,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637210102] [2022-03-03 17:03:16,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:16,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:16,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:16,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637210102] [2022-03-03 17:03:16,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637210102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:16,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:16,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:16,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814097478] [2022-03-03 17:03:16,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:16,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:16,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:16,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:16,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:16,513 INFO L87 Difference]: Start difference. First operand 7718 states and 20399 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:17,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:17,223 INFO L93 Difference]: Finished difference Result 8786 states and 23154 transitions. [2022-03-03 17:03:17,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:03:17,223 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:17,234 INFO L225 Difference]: With dead ends: 8786 [2022-03-03 17:03:17,234 INFO L226 Difference]: Without dead ends: 8162 [2022-03-03 17:03:17,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 17:03:17,235 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 430 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 2998 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:17,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 2998 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:17,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-03-03 17:03:17,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7690. [2022-03-03 17:03:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6440369358824296) internal successors, (20330), 7689 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:17,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20330 transitions. [2022-03-03 17:03:17,337 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20330 transitions. Word has length 109 [2022-03-03 17:03:17,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:17,337 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20330 transitions. [2022-03-03 17:03:17,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:17,337 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20330 transitions. [2022-03-03 17:03:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:17,346 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:17,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:17,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-03 17:03:17,346 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:17,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:17,346 INFO L85 PathProgramCache]: Analyzing trace with hash 252922488, now seen corresponding path program 22 times [2022-03-03 17:03:17,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:17,347 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611743176] [2022-03-03 17:03:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:17,456 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:17,456 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611743176] [2022-03-03 17:03:17,456 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611743176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:17,456 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:17,456 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:17,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686776886] [2022-03-03 17:03:17,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:17,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:17,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:17,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:17,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:17,456 INFO L87 Difference]: Start difference. First operand 7690 states and 20330 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:17,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:17,901 INFO L93 Difference]: Finished difference Result 9176 states and 24238 transitions. [2022-03-03 17:03:17,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:03:17,902 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:17,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:17,913 INFO L225 Difference]: With dead ends: 9176 [2022-03-03 17:03:17,914 INFO L226 Difference]: Without dead ends: 8697 [2022-03-03 17:03:17,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:03:17,914 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 229 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:17,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2809 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:17,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-03-03 17:03:17,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7714. [2022-03-03 17:03:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6438480487488656) internal successors, (20392), 7713 states have internal predecessors, (20392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:18,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20392 transitions. [2022-03-03 17:03:18,019 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20392 transitions. Word has length 109 [2022-03-03 17:03:18,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:18,019 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20392 transitions. [2022-03-03 17:03:18,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20392 transitions. [2022-03-03 17:03:18,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:18,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:18,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:18,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-03 17:03:18,028 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:18,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:18,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1880445606, now seen corresponding path program 23 times [2022-03-03 17:03:18,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:18,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550194067] [2022-03-03 17:03:18,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:18,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:18,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:18,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550194067] [2022-03-03 17:03:18,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550194067] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:18,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:18,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:18,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818476825] [2022-03-03 17:03:18,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:18,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:18,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:18,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:18,136 INFO L87 Difference]: Start difference. First operand 7714 states and 20392 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:18,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:18,568 INFO L93 Difference]: Finished difference Result 9142 states and 24149 transitions. [2022-03-03 17:03:18,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:18,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:18,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:18,579 INFO L225 Difference]: With dead ends: 9142 [2022-03-03 17:03:18,579 INFO L226 Difference]: Without dead ends: 8662 [2022-03-03 17:03:18,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1151, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:18,580 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 216 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:18,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2999 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:18,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8662 states. [2022-03-03 17:03:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8662 to 7710. [2022-03-03 17:03:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643792969256713) internal successors, (20381), 7709 states have internal predecessors, (20381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20381 transitions. [2022-03-03 17:03:18,681 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20381 transitions. Word has length 109 [2022-03-03 17:03:18,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:18,681 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20381 transitions. [2022-03-03 17:03:18,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:18,681 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20381 transitions. [2022-03-03 17:03:18,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:18,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:18,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:18,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-03 17:03:18,690 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:18,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:18,690 INFO L85 PathProgramCache]: Analyzing trace with hash 759388266, now seen corresponding path program 24 times [2022-03-03 17:03:18,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:18,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064581593] [2022-03-03 17:03:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:18,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:18,796 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:18,796 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064581593] [2022-03-03 17:03:18,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064581593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:18,796 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:18,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:18,797 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253082879] [2022-03-03 17:03:18,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:18,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:18,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:18,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:18,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:18,797 INFO L87 Difference]: Start difference. First operand 7710 states and 20381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:19,320 INFO L93 Difference]: Finished difference Result 9178 states and 24244 transitions. [2022-03-03 17:03:19,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:19,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:19,331 INFO L225 Difference]: With dead ends: 9178 [2022-03-03 17:03:19,331 INFO L226 Difference]: Without dead ends: 8658 [2022-03-03 17:03:19,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=474, Invalid=1688, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:03:19,332 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 305 mSDsluCounter, 2695 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:19,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2906 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:19,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-03-03 17:03:19,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7706. [2022-03-03 17:03:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643737832576249) internal successors, (20370), 7705 states have internal predecessors, (20370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20370 transitions. [2022-03-03 17:03:19,428 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20370 transitions. Word has length 109 [2022-03-03 17:03:19,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:19,429 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20370 transitions. [2022-03-03 17:03:19,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:19,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20370 transitions. [2022-03-03 17:03:19,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:19,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:19,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:19,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-03 17:03:19,437 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:19,437 INFO L85 PathProgramCache]: Analyzing trace with hash 234252730, now seen corresponding path program 25 times [2022-03-03 17:03:19,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:19,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987042382] [2022-03-03 17:03:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:19,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:19,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:19,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987042382] [2022-03-03 17:03:19,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987042382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:19,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:19,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:19,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707053576] [2022-03-03 17:03:19,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:19,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:19,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:19,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:19,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:19,542 INFO L87 Difference]: Start difference. First operand 7706 states and 20370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:20,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:20,158 INFO L93 Difference]: Finished difference Result 9406 states and 24843 transitions. [2022-03-03 17:03:20,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:03:20,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:20,170 INFO L225 Difference]: With dead ends: 9406 [2022-03-03 17:03:20,171 INFO L226 Difference]: Without dead ends: 8846 [2022-03-03 17:03:20,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=645, Invalid=2217, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:03:20,171 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 365 mSDsluCounter, 2943 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:20,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 3156 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:20,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-03-03 17:03:20,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7702. [2022-03-03 17:03:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6436826386183614) internal successors, (20359), 7701 states have internal predecessors, (20359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20359 transitions. [2022-03-03 17:03:20,283 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20359 transitions. Word has length 109 [2022-03-03 17:03:20,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:20,284 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20359 transitions. [2022-03-03 17:03:20,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20359 transitions. [2022-03-03 17:03:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:20,292 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:20,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:20,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-03 17:03:20,292 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:20,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:20,293 INFO L85 PathProgramCache]: Analyzing trace with hash 43939326, now seen corresponding path program 26 times [2022-03-03 17:03:20,293 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:20,293 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104052002] [2022-03-03 17:03:20,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:20,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:20,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:20,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104052002] [2022-03-03 17:03:20,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104052002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:20,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:20,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:20,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029472798] [2022-03-03 17:03:20,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:20,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:20,406 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:20,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:20,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:20,406 INFO L87 Difference]: Start difference. First operand 7702 states and 20359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:20,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:20,891 INFO L93 Difference]: Finished difference Result 9152 states and 24168 transitions. [2022-03-03 17:03:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:20,891 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:20,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:20,902 INFO L225 Difference]: With dead ends: 9152 [2022-03-03 17:03:20,902 INFO L226 Difference]: Without dead ends: 8673 [2022-03-03 17:03:20,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=359, Invalid=1047, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:20,903 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 232 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:20,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2813 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:20,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8673 states. [2022-03-03 17:03:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8673 to 7714. [2022-03-03 17:03:20,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-03-03 17:03:21,003 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-03-03 17:03:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:21,003 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-03-03 17:03:21,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-03-03 17:03:21,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:21,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:21,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:21,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-03 17:03:21,011 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1671462444, now seen corresponding path program 27 times [2022-03-03 17:03:21,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:21,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612495298] [2022-03-03 17:03:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:21,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:21,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:21,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612495298] [2022-03-03 17:03:21,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612495298] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:21,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:21,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:21,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150887702] [2022-03-03 17:03:21,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:21,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:21,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:21,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:21,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:21,118 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:21,551 INFO L93 Difference]: Finished difference Result 9110 states and 24057 transitions. [2022-03-03 17:03:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:21,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:21,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:21,561 INFO L225 Difference]: With dead ends: 9110 [2022-03-03 17:03:21,561 INFO L226 Difference]: Without dead ends: 8630 [2022-03-03 17:03:21,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1146, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:21,562 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 232 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:21,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2815 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8630 states. [2022-03-03 17:03:21,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8630 to 7710. [2022-03-03 17:03:21,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-03-03 17:03:21,659 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-03-03 17:03:21,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:21,659 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-03-03 17:03:21,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-03-03 17:03:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:21,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:21,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:21,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-03 17:03:21,667 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:21,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash 550405104, now seen corresponding path program 28 times [2022-03-03 17:03:21,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:21,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318431364] [2022-03-03 17:03:21,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:21,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:21,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:21,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318431364] [2022-03-03 17:03:21,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318431364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:21,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:21,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:21,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531175213] [2022-03-03 17:03:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:21,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:21,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:21,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:21,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:21,773 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:22,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:22,288 INFO L93 Difference]: Finished difference Result 9278 states and 24499 transitions. [2022-03-03 17:03:22,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:03:22,289 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:22,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:22,330 INFO L225 Difference]: With dead ends: 9278 [2022-03-03 17:03:22,330 INFO L226 Difference]: Without dead ends: 8758 [2022-03-03 17:03:22,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:03:22,330 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 316 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:22,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2884 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:22,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-03-03 17:03:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7706. [2022-03-03 17:03:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:22,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-03-03 17:03:22,428 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-03-03 17:03:22,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:22,428 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-03-03 17:03:22,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:22,428 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-03-03 17:03:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:22,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:22,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:22,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-03 17:03:22,438 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:22,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:22,438 INFO L85 PathProgramCache]: Analyzing trace with hash 623034828, now seen corresponding path program 29 times [2022-03-03 17:03:22,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:22,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177702897] [2022-03-03 17:03:22,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:22,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:22,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177702897] [2022-03-03 17:03:22,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177702897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:22,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:22,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:22,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605100776] [2022-03-03 17:03:22,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:22,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:22,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:22,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:22,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:22,546 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:23,067 INFO L93 Difference]: Finished difference Result 9196 states and 24260 transitions. [2022-03-03 17:03:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:03:23,067 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:23,078 INFO L225 Difference]: With dead ends: 9196 [2022-03-03 17:03:23,078 INFO L226 Difference]: Without dead ends: 8674 [2022-03-03 17:03:23,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:03:23,079 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 291 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:23,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2421 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:23,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8674 states. [2022-03-03 17:03:23,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8674 to 7710. [2022-03-03 17:03:23,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-03-03 17:03:23,177 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-03-03 17:03:23,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:23,177 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-03-03 17:03:23,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-03-03 17:03:23,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:23,185 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:23,186 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:23,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-03 17:03:23,186 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:23,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:23,186 INFO L85 PathProgramCache]: Analyzing trace with hash -934880522, now seen corresponding path program 30 times [2022-03-03 17:03:23,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:23,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809662220] [2022-03-03 17:03:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:23,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:23,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:23,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809662220] [2022-03-03 17:03:23,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809662220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:23,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:23,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:23,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154134611] [2022-03-03 17:03:23,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:23,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:23,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:23,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:23,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:23,297 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:23,742 INFO L93 Difference]: Finished difference Result 9096 states and 24006 transitions. [2022-03-03 17:03:23,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:23,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:23,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:23,754 INFO L225 Difference]: With dead ends: 9096 [2022-03-03 17:03:23,754 INFO L226 Difference]: Without dead ends: 8617 [2022-03-03 17:03:23,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:23,755 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 220 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:23,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2550 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:23,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2022-03-03 17:03:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 7714. [2022-03-03 17:03:23,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6422922338908337) internal successors, (20380), 7713 states have internal predecessors, (20380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20380 transitions. [2022-03-03 17:03:23,861 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20380 transitions. Word has length 109 [2022-03-03 17:03:23,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:23,861 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20380 transitions. [2022-03-03 17:03:23,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:23,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20380 transitions. [2022-03-03 17:03:23,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:23,870 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:23,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:23,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-03 17:03:23,870 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:23,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:23,870 INFO L85 PathProgramCache]: Analyzing trace with hash 692642596, now seen corresponding path program 31 times [2022-03-03 17:03:23,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:23,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188090830] [2022-03-03 17:03:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:23,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:23,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:23,973 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:23,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188090830] [2022-03-03 17:03:23,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188090830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:23,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:23,974 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:23,974 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419914778] [2022-03-03 17:03:23,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:23,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:23,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:23,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:23,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:23,974 INFO L87 Difference]: Start difference. First operand 7714 states and 20380 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:24,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:24,397 INFO L93 Difference]: Finished difference Result 9046 states and 23873 transitions. [2022-03-03 17:03:24,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:24,397 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:24,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:24,409 INFO L225 Difference]: With dead ends: 9046 [2022-03-03 17:03:24,409 INFO L226 Difference]: Without dead ends: 8554 [2022-03-03 17:03:24,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:24,410 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 208 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:24,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 3007 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:24,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-03-03 17:03:24,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7698. [2022-03-03 17:03:24,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-03-03 17:03:24,524 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-03-03 17:03:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:24,524 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-03-03 17:03:24,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-03-03 17:03:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:24,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:24,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:24,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-03 17:03:24,533 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:24,534 INFO L85 PathProgramCache]: Analyzing trace with hash -567642088, now seen corresponding path program 32 times [2022-03-03 17:03:24,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:24,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961742102] [2022-03-03 17:03:24,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:24,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:24,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:24,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:24,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961742102] [2022-03-03 17:03:24,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961742102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:24,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:24,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:24,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370994433] [2022-03-03 17:03:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:24,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:24,645 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:24,646 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:25,091 INFO L93 Difference]: Finished difference Result 8988 states and 23717 transitions. [2022-03-03 17:03:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:03:25,092 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:25,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:25,104 INFO L225 Difference]: With dead ends: 8988 [2022-03-03 17:03:25,105 INFO L226 Difference]: Without dead ends: 8509 [2022-03-03 17:03:25,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:03:25,105 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 209 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:25,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2975 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:25,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2022-03-03 17:03:25,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 7714. [2022-03-03 17:03:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-03-03 17:03:25,212 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-03-03 17:03:25,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:25,212 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-03-03 17:03:25,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-03-03 17:03:25,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:25,221 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:25,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:25,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-03 17:03:25,221 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:25,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:25,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1059881030, now seen corresponding path program 33 times [2022-03-03 17:03:25,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:25,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774130984] [2022-03-03 17:03:25,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:25,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:25,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:25,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774130984] [2022-03-03 17:03:25,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774130984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:25,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:25,326 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:25,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731380414] [2022-03-03 17:03:25,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:25,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:25,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:25,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:25,326 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:25,755 INFO L93 Difference]: Finished difference Result 8958 states and 23639 transitions. [2022-03-03 17:03:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:25,755 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:25,768 INFO L225 Difference]: With dead ends: 8958 [2022-03-03 17:03:25,768 INFO L226 Difference]: Without dead ends: 8478 [2022-03-03 17:03:25,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:25,768 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 213 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:25,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 3011 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8478 states. [2022-03-03 17:03:25,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8478 to 7710. [2022-03-03 17:03:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-03-03 17:03:25,883 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-03-03 17:03:25,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:25,883 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-03-03 17:03:25,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,883 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-03-03 17:03:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:25,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:25,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:25,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-03 17:03:25,892 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:25,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:25,893 INFO L85 PathProgramCache]: Analyzing trace with hash -61176310, now seen corresponding path program 34 times [2022-03-03 17:03:25,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:25,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157230151] [2022-03-03 17:03:25,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:25,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:25,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:25,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157230151] [2022-03-03 17:03:25,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157230151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:25,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:25,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:25,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688534975] [2022-03-03 17:03:25,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:25,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:25,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:25,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:25,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:26,000 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:26,539 INFO L93 Difference]: Finished difference Result 8994 states and 23734 transitions. [2022-03-03 17:03:26,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:26,540 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:26,553 INFO L225 Difference]: With dead ends: 8994 [2022-03-03 17:03:26,553 INFO L226 Difference]: Without dead ends: 8474 [2022-03-03 17:03:26,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1698, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:03:26,553 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 283 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:26,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 3108 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:26,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2022-03-03 17:03:26,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 7706. [2022-03-03 17:03:26,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:26,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-03-03 17:03:26,658 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-03-03 17:03:26,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:26,658 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-03-03 17:03:26,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:26,658 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-03-03 17:03:26,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:26,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:26,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:26,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-03 17:03:26,667 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:26,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash -586311846, now seen corresponding path program 35 times [2022-03-03 17:03:26,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:26,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603320179] [2022-03-03 17:03:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:26,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:26,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:26,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603320179] [2022-03-03 17:03:26,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603320179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:26,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:26,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:26,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140149416] [2022-03-03 17:03:26,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:26,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:26,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:26,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:26,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:26,773 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:27,422 INFO L93 Difference]: Finished difference Result 9030 states and 23829 transitions. [2022-03-03 17:03:27,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:03:27,422 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:27,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:27,435 INFO L225 Difference]: With dead ends: 9030 [2022-03-03 17:03:27,435 INFO L226 Difference]: Without dead ends: 8470 [2022-03-03 17:03:27,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:03:27,436 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 340 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:27,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 3194 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:27,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-03-03 17:03:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7702. [2022-03-03 17:03:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-03-03 17:03:27,567 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-03-03 17:03:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:27,567 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-03-03 17:03:27,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-03-03 17:03:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:27,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:27,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:27,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-03 17:03:27,576 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:27,576 INFO L85 PathProgramCache]: Analyzing trace with hash 65981420, now seen corresponding path program 36 times [2022-03-03 17:03:27,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:27,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778846947] [2022-03-03 17:03:27,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:27,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:27,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:27,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:27,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778846947] [2022-03-03 17:03:27,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778846947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:27,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:27,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:27,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152948517] [2022-03-03 17:03:27,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:27,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:27,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:27,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:27,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:27,681 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:28,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:28,417 INFO L93 Difference]: Finished difference Result 9238 states and 24361 transitions. [2022-03-03 17:03:28,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 17:03:28,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:28,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:28,428 INFO L225 Difference]: With dead ends: 9238 [2022-03-03 17:03:28,428 INFO L226 Difference]: Without dead ends: 8634 [2022-03-03 17:03:28,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:03:28,428 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 439 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:28,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3169 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:28,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8634 states. [2022-03-03 17:03:28,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8634 to 7694. [2022-03-03 17:03:28,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:28,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-03-03 17:03:28,534 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-03-03 17:03:28,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:28,534 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-03-03 17:03:28,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:28,535 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-03-03 17:03:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:28,544 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:28,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:28,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-03 17:03:28,544 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:28,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:28,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1695824410, now seen corresponding path program 37 times [2022-03-03 17:03:28,545 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:28,545 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22839140] [2022-03-03 17:03:28,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:28,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:28,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:28,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22839140] [2022-03-03 17:03:28,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22839140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:28,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:28,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:28,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373150008] [2022-03-03 17:03:28,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:28,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:28,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:28,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:28,680 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:29,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:29,090 INFO L93 Difference]: Finished difference Result 8956 states and 23629 transitions. [2022-03-03 17:03:29,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:03:29,090 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:29,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:29,102 INFO L225 Difference]: With dead ends: 8956 [2022-03-03 17:03:29,103 INFO L226 Difference]: Without dead ends: 8477 [2022-03-03 17:03:29,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=994, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:03:29,103 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 220 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:29,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2625 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:29,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8477 states. [2022-03-03 17:03:29,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8477 to 7714. [2022-03-03 17:03:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6433294437961883) internal successors, (20388), 7713 states have internal predecessors, (20388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20388 transitions. [2022-03-03 17:03:29,216 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20388 transitions. Word has length 109 [2022-03-03 17:03:29,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:29,216 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20388 transitions. [2022-03-03 17:03:29,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:29,216 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20388 transitions. [2022-03-03 17:03:29,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:29,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:29,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:29,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-03 17:03:29,225 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:29,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:29,225 INFO L85 PathProgramCache]: Analyzing trace with hash -971619768, now seen corresponding path program 38 times [2022-03-03 17:03:29,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:29,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920446882] [2022-03-03 17:03:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:29,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:29,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:29,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:29,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920446882] [2022-03-03 17:03:29,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920446882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:29,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:29,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:29,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137571301] [2022-03-03 17:03:29,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:29,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:29,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:29,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:29,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:29,331 INFO L87 Difference]: Start difference. First operand 7714 states and 20388 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:29,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:29,751 INFO L93 Difference]: Finished difference Result 8922 states and 23540 transitions. [2022-03-03 17:03:29,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:29,751 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:29,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:29,761 INFO L225 Difference]: With dead ends: 8922 [2022-03-03 17:03:29,761 INFO L226 Difference]: Without dead ends: 8442 [2022-03-03 17:03:29,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:29,762 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 214 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:29,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2806 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-03-03 17:03:29,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7710. [2022-03-03 17:03:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.643274095213387) internal successors, (20377), 7709 states have internal predecessors, (20377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:29,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20377 transitions. [2022-03-03 17:03:29,858 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20377 transitions. Word has length 109 [2022-03-03 17:03:29,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:29,858 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20377 transitions. [2022-03-03 17:03:29,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20377 transitions. [2022-03-03 17:03:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:29,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:29,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:29,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-03 17:03:29,866 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:29,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:29,866 INFO L85 PathProgramCache]: Analyzing trace with hash -2092677108, now seen corresponding path program 39 times [2022-03-03 17:03:29,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:29,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447875126] [2022-03-03 17:03:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:29,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:29,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:29,967 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:29,967 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447875126] [2022-03-03 17:03:29,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447875126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:29,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:29,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:29,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765323703] [2022-03-03 17:03:29,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:29,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:29,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:29,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:29,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:29,968 INFO L87 Difference]: Start difference. First operand 7710 states and 20377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:30,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:30,473 INFO L93 Difference]: Finished difference Result 8958 states and 23635 transitions. [2022-03-03 17:03:30,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:30,473 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:30,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:30,485 INFO L225 Difference]: With dead ends: 8958 [2022-03-03 17:03:30,485 INFO L226 Difference]: Without dead ends: 8438 [2022-03-03 17:03:30,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=485, Invalid=1677, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:03:30,485 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 283 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:30,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 2895 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-03-03 17:03:30,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7706. [2022-03-03 17:03:30,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.643218689162881) internal successors, (20366), 7705 states have internal predecessors, (20366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:30,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20366 transitions. [2022-03-03 17:03:30,585 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20366 transitions. Word has length 109 [2022-03-03 17:03:30,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:30,585 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20366 transitions. [2022-03-03 17:03:30,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:30,585 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20366 transitions. [2022-03-03 17:03:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:30,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:30,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:30,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-03 17:03:30,593 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1677154652, now seen corresponding path program 40 times [2022-03-03 17:03:30,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:30,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484323463] [2022-03-03 17:03:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:30,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:30,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484323463] [2022-03-03 17:03:30,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484323463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:30,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:30,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:30,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827314257] [2022-03-03 17:03:30,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:30,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:30,695 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:30,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:30,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:30,695 INFO L87 Difference]: Start difference. First operand 7706 states and 20366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:31,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:31,281 INFO L93 Difference]: Finished difference Result 9102 states and 24003 transitions. [2022-03-03 17:03:31,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:03:31,281 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:31,293 INFO L225 Difference]: With dead ends: 9102 [2022-03-03 17:03:31,293 INFO L226 Difference]: Without dead ends: 8542 [2022-03-03 17:03:31,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=639, Invalid=2117, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:03:31,294 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 356 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:31,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 2936 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:31,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8542 states. [2022-03-03 17:03:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8542 to 7702. [2022-03-03 17:03:31,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.6431632255551225) internal successors, (20355), 7701 states have internal predecessors, (20355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20355 transitions. [2022-03-03 17:03:31,390 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20355 transitions. Word has length 109 [2022-03-03 17:03:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:31,390 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20355 transitions. [2022-03-03 17:03:31,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20355 transitions. [2022-03-03 17:03:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:31,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:31,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:31,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-03 17:03:31,399 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:31,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1486841248, now seen corresponding path program 41 times [2022-03-03 17:03:31,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:31,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998548213] [2022-03-03 17:03:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:31,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:31,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:31,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998548213] [2022-03-03 17:03:31,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998548213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:31,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:31,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:31,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635392843] [2022-03-03 17:03:31,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:31,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:31,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:31,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:31,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:31,501 INFO L87 Difference]: Start difference. First operand 7702 states and 20355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:31,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:31,955 INFO L93 Difference]: Finished difference Result 9028 states and 23823 transitions. [2022-03-03 17:03:31,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:31,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:31,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:31,968 INFO L225 Difference]: With dead ends: 9028 [2022-03-03 17:03:31,968 INFO L226 Difference]: Without dead ends: 8549 [2022-03-03 17:03:31,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:31,968 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 242 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:31,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2610 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:31,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8549 states. [2022-03-03 17:03:32,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8549 to 7714. [2022-03-03 17:03:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-03-03 17:03:32,071 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-03-03 17:03:32,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:32,071 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-03-03 17:03:32,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-03-03 17:03:32,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:32,080 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:32,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:32,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-03 17:03:32,080 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:32,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:32,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1180602930, now seen corresponding path program 42 times [2022-03-03 17:03:32,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:32,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220825853] [2022-03-03 17:03:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:32,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:32,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:32,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220825853] [2022-03-03 17:03:32,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220825853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:32,188 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:32,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:32,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522668570] [2022-03-03 17:03:32,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:32,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:32,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:32,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:32,189 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:32,627 INFO L93 Difference]: Finished difference Result 8986 states and 23712 transitions. [2022-03-03 17:03:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:32,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:32,639 INFO L225 Difference]: With dead ends: 8986 [2022-03-03 17:03:32,639 INFO L226 Difference]: Without dead ends: 8506 [2022-03-03 17:03:32,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:32,639 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 239 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:32,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 2603 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:32,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8506 states. [2022-03-03 17:03:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8506 to 7710. [2022-03-03 17:03:32,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-03-03 17:03:32,736 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-03-03 17:03:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:32,736 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-03-03 17:03:32,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-03-03 17:03:32,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:32,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:32,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:32,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-03 17:03:32,745 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:32,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:32,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1993307026, now seen corresponding path program 43 times [2022-03-03 17:03:32,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:32,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879990519] [2022-03-03 17:03:32,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:32,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:32,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:32,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879990519] [2022-03-03 17:03:32,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879990519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:32,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:32,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:32,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041783453] [2022-03-03 17:03:32,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:32,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:32,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:32,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:32,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:32,851 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:33,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:33,358 INFO L93 Difference]: Finished difference Result 9114 states and 24044 transitions. [2022-03-03 17:03:33,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:03:33,359 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:33,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:33,369 INFO L225 Difference]: With dead ends: 9114 [2022-03-03 17:03:33,369 INFO L226 Difference]: Without dead ends: 8594 [2022-03-03 17:03:33,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:03:33,370 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 308 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:33,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 3033 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-03-03 17:03:33,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7706. [2022-03-03 17:03:33,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:33,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-03-03 17:03:33,465 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-03-03 17:03:33,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:33,465 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-03-03 17:03:33,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:33,465 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-03-03 17:03:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:33,473 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:33,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:33,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-03 17:03:33,473 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:33,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:33,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2065936750, now seen corresponding path program 44 times [2022-03-03 17:03:33,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:33,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122415849] [2022-03-03 17:03:33,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:33,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:33,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:33,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:33,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122415849] [2022-03-03 17:03:33,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122415849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:33,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:33,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:33,579 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197239143] [2022-03-03 17:03:33,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:33,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:33,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:33,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:33,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:33,579 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:34,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:34,133 INFO L93 Difference]: Finished difference Result 9116 states and 24036 transitions. [2022-03-03 17:03:34,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:03:34,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:34,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:34,144 INFO L225 Difference]: With dead ends: 9116 [2022-03-03 17:03:34,144 INFO L226 Difference]: Without dead ends: 8594 [2022-03-03 17:03:34,144 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:03:34,145 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 289 mSDsluCounter, 2675 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:34,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2865 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:34,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2022-03-03 17:03:34,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 7710. [2022-03-03 17:03:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-03-03 17:03:34,261 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-03-03 17:03:34,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:34,261 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-03-03 17:03:34,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:34,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-03-03 17:03:34,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:34,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:34,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:34,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-03 17:03:34,270 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:34,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:34,271 INFO L85 PathProgramCache]: Analyzing trace with hash 508021400, now seen corresponding path program 45 times [2022-03-03 17:03:34,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:34,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833628971] [2022-03-03 17:03:34,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:34,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:34,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:34,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833628971] [2022-03-03 17:03:34,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833628971] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:34,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:34,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:34,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786118568] [2022-03-03 17:03:34,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:34,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:34,374 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:34,375 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:34,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:34,801 INFO L93 Difference]: Finished difference Result 8968 states and 23650 transitions. [2022-03-03 17:03:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:34,802 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:34,812 INFO L225 Difference]: With dead ends: 8968 [2022-03-03 17:03:34,812 INFO L226 Difference]: Without dead ends: 8489 [2022-03-03 17:03:34,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=374, Invalid=1108, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:34,813 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 226 mSDsluCounter, 2317 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:34,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2518 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-03-03 17:03:34,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7714. [2022-03-03 17:03:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-03-03 17:03:34,906 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-03-03 17:03:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:34,906 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-03-03 17:03:34,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-03-03 17:03:34,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:34,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:34,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:34,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-03 17:03:34,915 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:34,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:34,915 INFO L85 PathProgramCache]: Analyzing trace with hash 2135544518, now seen corresponding path program 46 times [2022-03-03 17:03:34,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:34,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588015277] [2022-03-03 17:03:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:34,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:35,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:35,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588015277] [2022-03-03 17:03:35,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588015277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:35,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:35,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:35,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208105302] [2022-03-03 17:03:35,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:35,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:35,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:35,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:35,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:35,024 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:35,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:35,431 INFO L93 Difference]: Finished difference Result 8886 states and 23429 transitions. [2022-03-03 17:03:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:35,432 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:35,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:35,442 INFO L225 Difference]: With dead ends: 8886 [2022-03-03 17:03:35,442 INFO L226 Difference]: Without dead ends: 8394 [2022-03-03 17:03:35,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:35,442 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 213 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:35,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2944 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8394 states. [2022-03-03 17:03:35,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8394 to 7698. [2022-03-03 17:03:35,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-03 17:03:35,532 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-03 17:03:35,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:35,532 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-03 17:03:35,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-03 17:03:35,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:35,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:35,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:35,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-03 17:03:35,541 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:35,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:35,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1438805144, now seen corresponding path program 47 times [2022-03-03 17:03:35,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:35,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912728724] [2022-03-03 17:03:35,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:35,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:35,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:35,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912728724] [2022-03-03 17:03:35,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912728724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:35,649 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:35,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:35,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661572739] [2022-03-03 17:03:35,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:35,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:35,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:35,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:35,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:35,649 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:36,064 INFO L93 Difference]: Finished difference Result 8924 states and 23537 transitions. [2022-03-03 17:03:36,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:36,065 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:36,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:36,076 INFO L225 Difference]: With dead ends: 8924 [2022-03-03 17:03:36,076 INFO L226 Difference]: Without dead ends: 8445 [2022-03-03 17:03:36,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:36,076 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 247 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:36,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 2207 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:36,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-03-03 17:03:36,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-03-03 17:03:36,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.642810838843511) internal successors, (20384), 7713 states have internal predecessors, (20384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20384 transitions. [2022-03-03 17:03:36,179 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20384 transitions. Word has length 109 [2022-03-03 17:03:36,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:36,179 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20384 transitions. [2022-03-03 17:03:36,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,179 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20384 transitions. [2022-03-03 17:03:36,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:36,188 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:36,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:36,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-03 17:03:36,188 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:36,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:36,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1228639034, now seen corresponding path program 48 times [2022-03-03 17:03:36,189 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:36,189 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109702638] [2022-03-03 17:03:36,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:36,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:36,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:36,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109702638] [2022-03-03 17:03:36,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109702638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:36,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:36,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:36,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769100490] [2022-03-03 17:03:36,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:36,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:36,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:36,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:36,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:36,289 INFO L87 Difference]: Start difference. First operand 7714 states and 20384 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:36,696 INFO L93 Difference]: Finished difference Result 8882 states and 23426 transitions. [2022-03-03 17:03:36,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:36,696 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:36,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:36,707 INFO L225 Difference]: With dead ends: 8882 [2022-03-03 17:03:36,707 INFO L226 Difference]: Without dead ends: 8402 [2022-03-03 17:03:36,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:36,707 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 226 mSDsluCounter, 2386 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:36,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2586 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:36,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8402 states. [2022-03-03 17:03:36,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8402 to 7710. [2022-03-03 17:03:36,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642755221170061) internal successors, (20373), 7709 states have internal predecessors, (20373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20373 transitions. [2022-03-03 17:03:36,802 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20373 transitions. Word has length 109 [2022-03-03 17:03:36,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:36,802 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20373 transitions. [2022-03-03 17:03:36,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,803 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20373 transitions. [2022-03-03 17:03:36,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:36,811 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:36,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:36,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-03 17:03:36,811 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:36,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:36,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1945270922, now seen corresponding path program 49 times [2022-03-03 17:03:36,811 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:36,811 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595823295] [2022-03-03 17:03:36,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:36,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:36,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:36,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595823295] [2022-03-03 17:03:36,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595823295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:36,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:36,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:36,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858059706] [2022-03-03 17:03:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:36,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:36,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:36,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:36,916 INFO L87 Difference]: Start difference. First operand 7710 states and 20373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:37,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:37,380 INFO L93 Difference]: Finished difference Result 8990 states and 23703 transitions. [2022-03-03 17:03:37,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:03:37,381 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:37,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:37,392 INFO L225 Difference]: With dead ends: 8990 [2022-03-03 17:03:37,392 INFO L226 Difference]: Without dead ends: 8470 [2022-03-03 17:03:37,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:03:37,393 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 313 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:37,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 2446 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:37,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-03-03 17:03:37,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7706. [2022-03-03 17:03:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6426995457495135) internal successors, (20362), 7705 states have internal predecessors, (20362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20362 transitions. [2022-03-03 17:03:37,500 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20362 transitions. Word has length 109 [2022-03-03 17:03:37,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:37,500 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20362 transitions. [2022-03-03 17:03:37,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:37,500 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20362 transitions. [2022-03-03 17:03:37,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:37,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:37,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:37,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-03 17:03:37,509 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:37,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2017900646, now seen corresponding path program 50 times [2022-03-03 17:03:37,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:37,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384630045] [2022-03-03 17:03:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:37,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:37,613 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:37,613 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384630045] [2022-03-03 17:03:37,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384630045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:37,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:37,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:37,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404565110] [2022-03-03 17:03:37,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:37,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:37,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:37,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:37,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:37,614 INFO L87 Difference]: Start difference. First operand 7706 states and 20362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:38,160 INFO L93 Difference]: Finished difference Result 9088 states and 23959 transitions. [2022-03-03 17:03:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:03:38,160 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:38,170 INFO L225 Difference]: With dead ends: 9088 [2022-03-03 17:03:38,170 INFO L226 Difference]: Without dead ends: 8566 [2022-03-03 17:03:38,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=528, Invalid=1542, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:03:38,171 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 329 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:38,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 2616 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-03-03 17:03:38,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7710. [2022-03-03 17:03:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.642236347126735) internal successors, (20369), 7709 states have internal predecessors, (20369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20369 transitions. [2022-03-03 17:03:38,270 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20369 transitions. Word has length 109 [2022-03-03 17:03:38,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:38,270 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20369 transitions. [2022-03-03 17:03:38,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,270 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20369 transitions. [2022-03-03 17:03:38,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:38,278 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:38,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:38,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-03 17:03:38,278 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:38,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:38,279 INFO L85 PathProgramCache]: Analyzing trace with hash 459985296, now seen corresponding path program 51 times [2022-03-03 17:03:38,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:38,279 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137858211] [2022-03-03 17:03:38,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:38,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:38,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:38,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:38,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137858211] [2022-03-03 17:03:38,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137858211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:38,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:38,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:38,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710148791] [2022-03-03 17:03:38,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:38,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:38,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:38,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:38,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:38,388 INFO L87 Difference]: Start difference. First operand 7710 states and 20369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:38,793 INFO L93 Difference]: Finished difference Result 8924 states and 23529 transitions. [2022-03-03 17:03:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:38,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:38,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:38,804 INFO L225 Difference]: With dead ends: 8924 [2022-03-03 17:03:38,804 INFO L226 Difference]: Without dead ends: 8445 [2022-03-03 17:03:38,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:38,804 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 264 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:38,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [264 Valid, 2150 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:38,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8445 states. [2022-03-03 17:03:38,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8445 to 7714. [2022-03-03 17:03:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.6417736289381564) internal successors, (20376), 7713 states have internal predecessors, (20376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20376 transitions. [2022-03-03 17:03:38,901 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20376 transitions. Word has length 109 [2022-03-03 17:03:38,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:38,901 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20376 transitions. [2022-03-03 17:03:38,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20376 transitions. [2022-03-03 17:03:38,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:38,910 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:38,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:38,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-03 17:03:38,910 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:38,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2087508414, now seen corresponding path program 52 times [2022-03-03 17:03:38,911 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:38,911 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213000797] [2022-03-03 17:03:38,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:38,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:39,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:39,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213000797] [2022-03-03 17:03:39,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213000797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:39,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:39,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:39,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515626316] [2022-03-03 17:03:39,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:39,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:39,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:39,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:39,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:39,011 INFO L87 Difference]: Start difference. First operand 7714 states and 20376 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:39,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:39,403 INFO L93 Difference]: Finished difference Result 8858 states and 23352 transitions. [2022-03-03 17:03:39,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:39,403 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:39,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:39,414 INFO L225 Difference]: With dead ends: 8858 [2022-03-03 17:03:39,415 INFO L226 Difference]: Without dead ends: 8370 [2022-03-03 17:03:39,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:39,415 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 245 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:39,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2722 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:39,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8370 states. [2022-03-03 17:03:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8370 to 7702. [2022-03-03 17:03:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7702 states, 7701 states have (on average 2.642643812491884) internal successors, (20351), 7701 states have internal predecessors, (20351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:39,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 20351 transitions. [2022-03-03 17:03:39,508 INFO L78 Accepts]: Start accepts. Automaton has 7702 states and 20351 transitions. Word has length 109 [2022-03-03 17:03:39,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:39,508 INFO L470 AbstractCegarLoop]: Abstraction has 7702 states and 20351 transitions. [2022-03-03 17:03:39,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:39,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7702 states and 20351 transitions. [2022-03-03 17:03:39,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:39,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:39,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:39,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-03 17:03:39,540 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:39,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:39,541 INFO L85 PathProgramCache]: Analyzing trace with hash 805164314, now seen corresponding path program 53 times [2022-03-03 17:03:39,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:39,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050228019] [2022-03-03 17:03:39,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:39,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:39,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:39,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:39,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050228019] [2022-03-03 17:03:39,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050228019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:39,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:39,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:39,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758902228] [2022-03-03 17:03:39,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:39,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:39,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:39,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:39,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:39,653 INFO L87 Difference]: Start difference. First operand 7702 states and 20351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:40,273 INFO L93 Difference]: Finished difference Result 9025 states and 23767 transitions. [2022-03-03 17:03:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:03:40,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:40,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:40,285 INFO L225 Difference]: With dead ends: 9025 [2022-03-03 17:03:40,285 INFO L226 Difference]: Without dead ends: 8460 [2022-03-03 17:03:40,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=681, Invalid=1869, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 17:03:40,286 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 389 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:40,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2374 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:40,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8460 states. [2022-03-03 17:03:40,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8460 to 7706. [2022-03-03 17:03:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7706 states, 7705 states have (on average 2.6421804023361455) internal successors, (20358), 7705 states have internal predecessors, (20358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7706 states to 7706 states and 20358 transitions. [2022-03-03 17:03:40,383 INFO L78 Accepts]: Start accepts. Automaton has 7706 states and 20358 transitions. Word has length 109 [2022-03-03 17:03:40,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:40,383 INFO L470 AbstractCegarLoop]: Abstraction has 7706 states and 20358 transitions. [2022-03-03 17:03:40,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 7706 states and 20358 transitions. [2022-03-03 17:03:40,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:40,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:40,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:40,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-03 17:03:40,392 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:40,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:40,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1669595376, now seen corresponding path program 54 times [2022-03-03 17:03:40,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:40,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699380474] [2022-03-03 17:03:40,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:40,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:40,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:40,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:40,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699380474] [2022-03-03 17:03:40,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699380474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:40,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:40,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:40,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130997639] [2022-03-03 17:03:40,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:40,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:40,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:40,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:40,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:40,509 INFO L87 Difference]: Start difference. First operand 7706 states and 20358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:41,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:41,074 INFO L93 Difference]: Finished difference Result 8920 states and 23493 transitions. [2022-03-03 17:03:41,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:41,074 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:41,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:41,085 INFO L225 Difference]: With dead ends: 8920 [2022-03-03 17:03:41,085 INFO L226 Difference]: Without dead ends: 8398 [2022-03-03 17:03:41,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=542, Invalid=1620, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:03:41,085 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 342 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:41,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2774 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:41,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-03-03 17:03:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 7710. [2022-03-03 17:03:41,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7710 states, 7709 states have (on average 2.641717473083409) internal successors, (20365), 7709 states have internal predecessors, (20365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7710 states to 7710 states and 20365 transitions. [2022-03-03 17:03:41,190 INFO L78 Accepts]: Start accepts. Automaton has 7710 states and 20365 transitions. Word has length 109 [2022-03-03 17:03:41,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:41,190 INFO L470 AbstractCegarLoop]: Abstraction has 7710 states and 20365 transitions. [2022-03-03 17:03:41,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:41,190 INFO L276 IsEmpty]: Start isEmpty. Operand 7710 states and 20365 transitions. [2022-03-03 17:03:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:41,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:41,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:41,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-03 17:03:41,201 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:41,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:41,201 INFO L85 PathProgramCache]: Analyzing trace with hash 111680026, now seen corresponding path program 55 times [2022-03-03 17:03:41,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:41,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643562995] [2022-03-03 17:03:41,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:41,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:41,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:41,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643562995] [2022-03-03 17:03:41,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643562995] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:41,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:41,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:41,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562947330] [2022-03-03 17:03:41,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:41,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:41,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:41,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:41,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:41,309 INFO L87 Difference]: Start difference. First operand 7710 states and 20365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:41,706 INFO L93 Difference]: Finished difference Result 8796 states and 23173 transitions. [2022-03-03 17:03:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:41,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:41,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:41,716 INFO L225 Difference]: With dead ends: 8796 [2022-03-03 17:03:41,717 INFO L226 Difference]: Without dead ends: 8317 [2022-03-03 17:03:41,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=1116, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:03:41,717 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 279 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:41,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2227 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:41,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8317 states. [2022-03-03 17:03:41,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8317 to 7714. [2022-03-03 17:03:41,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7714 states, 7713 states have (on average 2.641255023985479) internal successors, (20372), 7713 states have internal predecessors, (20372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:41,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7714 states to 7714 states and 20372 transitions. [2022-03-03 17:03:41,807 INFO L78 Accepts]: Start accepts. Automaton has 7714 states and 20372 transitions. Word has length 109 [2022-03-03 17:03:41,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:41,807 INFO L470 AbstractCegarLoop]: Abstraction has 7714 states and 20372 transitions. [2022-03-03 17:03:41,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:41,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7714 states and 20372 transitions. [2022-03-03 17:03:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:41,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:41,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:41,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-03 17:03:41,815 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:41,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:41,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1739203144, now seen corresponding path program 56 times [2022-03-03 17:03:41,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:41,815 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530444042] [2022-03-03 17:03:41,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:41,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:41,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:41,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530444042] [2022-03-03 17:03:41,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530444042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:41,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:41,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:41,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478145407] [2022-03-03 17:03:41,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:41,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:41,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:41,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:41,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:41,917 INFO L87 Difference]: Start difference. First operand 7714 states and 20372 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:42,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:42,283 INFO L93 Difference]: Finished difference Result 8662 states and 22809 transitions. [2022-03-03 17:03:42,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:03:42,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:42,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:42,295 INFO L225 Difference]: With dead ends: 8662 [2022-03-03 17:03:42,295 INFO L226 Difference]: Without dead ends: 8142 [2022-03-03 17:03:42,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:03:42,296 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 224 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:42,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 1918 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:42,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8142 states. [2022-03-03 17:03:42,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8142 to 7670. [2022-03-03 17:03:42,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 7669 states have (on average 2.643760594601643) internal successors, (20275), 7669 states have internal predecessors, (20275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:42,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 20275 transitions. [2022-03-03 17:03:42,406 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 20275 transitions. Word has length 109 [2022-03-03 17:03:42,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:42,406 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 20275 transitions. [2022-03-03 17:03:42,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:42,407 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 20275 transitions. [2022-03-03 17:03:42,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:42,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:42,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:42,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-03 17:03:42,416 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:42,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:42,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1409171550, now seen corresponding path program 57 times [2022-03-03 17:03:42,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:42,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639714560] [2022-03-03 17:03:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:42,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:42,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:42,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639714560] [2022-03-03 17:03:42,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639714560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:42,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:42,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:42,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512280443] [2022-03-03 17:03:42,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:42,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:42,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:42,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:42,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:42,538 INFO L87 Difference]: Start difference. First operand 7670 states and 20275 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:42,979 INFO L93 Difference]: Finished difference Result 9236 states and 24403 transitions. [2022-03-03 17:03:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:03:42,980 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:42,993 INFO L225 Difference]: With dead ends: 9236 [2022-03-03 17:03:42,993 INFO L226 Difference]: Without dead ends: 8757 [2022-03-03 17:03:42,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:03:42,993 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 197 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:42,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 2656 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:43,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8757 states. [2022-03-03 17:03:43,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8757 to 7698. [2022-03-03 17:03:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643627387293751) internal successors, (20348), 7697 states have internal predecessors, (20348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:43,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20348 transitions. [2022-03-03 17:03:43,111 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20348 transitions. Word has length 109 [2022-03-03 17:03:43,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:43,111 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20348 transitions. [2022-03-03 17:03:43,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:43,111 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20348 transitions. [2022-03-03 17:03:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:43,121 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:43,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:43,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-03 17:03:43,121 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:43,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash 218351568, now seen corresponding path program 58 times [2022-03-03 17:03:43,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:43,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031616729] [2022-03-03 17:03:43,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:43,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:43,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:43,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031616729] [2022-03-03 17:03:43,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031616729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:43,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:43,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:43,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072082125] [2022-03-03 17:03:43,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:43,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:43,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:43,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:43,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:43,232 INFO L87 Difference]: Start difference. First operand 7698 states and 20348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:43,683 INFO L93 Difference]: Finished difference Result 9202 states and 24314 transitions. [2022-03-03 17:03:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:43,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:43,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:43,697 INFO L225 Difference]: With dead ends: 9202 [2022-03-03 17:03:43,697 INFO L226 Difference]: Without dead ends: 8722 [2022-03-03 17:03:43,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:43,697 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 216 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:43,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2713 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:43,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-03-03 17:03:43,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7694. [2022-03-03 17:03:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6435720785129337) internal successors, (20337), 7693 states have internal predecessors, (20337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:43,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20337 transitions. [2022-03-03 17:03:43,819 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20337 transitions. Word has length 109 [2022-03-03 17:03:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:43,819 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20337 transitions. [2022-03-03 17:03:43,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20337 transitions. [2022-03-03 17:03:43,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:43,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:43,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:43,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-03 17:03:43,829 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:43,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:43,829 INFO L85 PathProgramCache]: Analyzing trace with hash -902705772, now seen corresponding path program 59 times [2022-03-03 17:03:43,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:43,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239466780] [2022-03-03 17:03:43,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:43,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:43,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:43,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239466780] [2022-03-03 17:03:43,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239466780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:43,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:43,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:43,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243213520] [2022-03-03 17:03:43,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:43,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:43,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:43,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:43,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:43,941 INFO L87 Difference]: Start difference. First operand 7694 states and 20337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:44,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:44,522 INFO L93 Difference]: Finished difference Result 9238 states and 24409 transitions. [2022-03-03 17:03:44,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:44,522 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:44,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:44,536 INFO L225 Difference]: With dead ends: 9238 [2022-03-03 17:03:44,536 INFO L226 Difference]: Without dead ends: 8718 [2022-03-03 17:03:44,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=454, Invalid=1616, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:03:44,537 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 270 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:44,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2966 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:44,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8718 states. [2022-03-03 17:03:44,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8718 to 7690. [2022-03-03 17:03:44,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.64351671218624) internal successors, (20326), 7689 states have internal predecessors, (20326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20326 transitions. [2022-03-03 17:03:44,662 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20326 transitions. Word has length 109 [2022-03-03 17:03:44,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:44,662 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20326 transitions. [2022-03-03 17:03:44,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20326 transitions. [2022-03-03 17:03:44,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:44,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:44,672 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:44,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-03 17:03:44,672 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:44,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:44,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1427841308, now seen corresponding path program 60 times [2022-03-03 17:03:44,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:44,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348225072] [2022-03-03 17:03:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:44,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:44,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:44,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:44,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348225072] [2022-03-03 17:03:44,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348225072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:44,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:44,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:44,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945486970] [2022-03-03 17:03:44,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:44,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:44,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:44,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:44,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:44,791 INFO L87 Difference]: Start difference. First operand 7690 states and 20326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:45,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:45,483 INFO L93 Difference]: Finished difference Result 9466 states and 25008 transitions. [2022-03-03 17:03:45,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:03:45,483 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:45,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:45,497 INFO L225 Difference]: With dead ends: 9466 [2022-03-03 17:03:45,497 INFO L226 Difference]: Without dead ends: 8906 [2022-03-03 17:03:45,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=625, Invalid=2131, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:03:45,498 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 359 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 2855 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:45,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [359 Valid, 2855 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:45,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2022-03-03 17:03:45,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 7686. [2022-03-03 17:03:45,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6434612882238127) internal successors, (20315), 7685 states have internal predecessors, (20315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20315 transitions. [2022-03-03 17:03:45,623 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20315 transitions. Word has length 109 [2022-03-03 17:03:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:45,623 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20315 transitions. [2022-03-03 17:03:45,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:45,623 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20315 transitions. [2022-03-03 17:03:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:45,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:45,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:45,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-03 17:03:45,633 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:45,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:45,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1618154712, now seen corresponding path program 61 times [2022-03-03 17:03:45,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:45,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185143107] [2022-03-03 17:03:45,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:45,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:45,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:45,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185143107] [2022-03-03 17:03:45,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185143107] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:45,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:45,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:45,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173767384] [2022-03-03 17:03:45,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:45,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:45,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:45,778 INFO L87 Difference]: Start difference. First operand 7686 states and 20315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:46,272 INFO L93 Difference]: Finished difference Result 9212 states and 24333 transitions. [2022-03-03 17:03:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:46,273 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:46,286 INFO L225 Difference]: With dead ends: 9212 [2022-03-03 17:03:46,286 INFO L226 Difference]: Without dead ends: 8733 [2022-03-03 17:03:46,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:03:46,287 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 200 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:46,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2869 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:03:46,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2022-03-03 17:03:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7698. [2022-03-03 17:03:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-03 17:03:46,414 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-03 17:03:46,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:46,415 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-03 17:03:46,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-03 17:03:46,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:46,424 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:46,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:46,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-03 17:03:46,425 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:46,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:46,425 INFO L85 PathProgramCache]: Analyzing trace with hash 9368406, now seen corresponding path program 62 times [2022-03-03 17:03:46,425 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:46,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269916443] [2022-03-03 17:03:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:46,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:46,547 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:46,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269916443] [2022-03-03 17:03:46,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269916443] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:46,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:46,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:46,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532332180] [2022-03-03 17:03:46,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:46,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:46,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:46,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:46,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:46,548 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:47,028 INFO L93 Difference]: Finished difference Result 9170 states and 24222 transitions. [2022-03-03 17:03:47,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:47,028 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:47,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:47,041 INFO L225 Difference]: With dead ends: 9170 [2022-03-03 17:03:47,042 INFO L226 Difference]: Without dead ends: 8690 [2022-03-03 17:03:47,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:47,042 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 200 mSDsluCounter, 2666 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:47,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2867 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:03:47,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-03-03 17:03:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7694. [2022-03-03 17:03:47,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-03 17:03:47,163 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-03 17:03:47,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:47,164 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-03 17:03:47,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-03 17:03:47,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:47,173 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:47,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:47,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-03 17:03:47,174 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:47,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:47,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1111688934, now seen corresponding path program 63 times [2022-03-03 17:03:47,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:47,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924704548] [2022-03-03 17:03:47,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:47,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:47,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:47,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:47,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924704548] [2022-03-03 17:03:47,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924704548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:47,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:47,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:47,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016689197] [2022-03-03 17:03:47,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:47,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:47,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:47,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:47,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:47,291 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:47,864 INFO L93 Difference]: Finished difference Result 9338 states and 24664 transitions. [2022-03-03 17:03:47,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:03:47,865 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:47,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:47,878 INFO L225 Difference]: With dead ends: 9338 [2022-03-03 17:03:47,878 INFO L226 Difference]: Without dead ends: 8818 [2022-03-03 17:03:47,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=442, Invalid=1538, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:03:47,878 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 281 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2943 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:47,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2943 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:03:47,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-03-03 17:03:47,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7690. [2022-03-03 17:03:47,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:48,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-03 17:03:48,005 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-03 17:03:48,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:48,005 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-03 17:03:48,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:48,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-03 17:03:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:48,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:48,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:48,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-03 17:03:48,015 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:48,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1039059210, now seen corresponding path program 64 times [2022-03-03 17:03:48,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:48,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851196242] [2022-03-03 17:03:48,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:48,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:48,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:48,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851196242] [2022-03-03 17:03:48,134 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851196242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:48,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:48,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:48,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479924843] [2022-03-03 17:03:48,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:48,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:48,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:48,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:48,135 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:48,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:48,721 INFO L93 Difference]: Finished difference Result 9256 states and 24425 transitions. [2022-03-03 17:03:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:03:48,722 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:48,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:48,733 INFO L225 Difference]: With dead ends: 9256 [2022-03-03 17:03:48,734 INFO L226 Difference]: Without dead ends: 8734 [2022-03-03 17:03:48,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:03:48,734 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 259 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:48,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2725 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:48,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8734 states. [2022-03-03 17:03:48,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8734 to 7694. [2022-03-03 17:03:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-03 17:03:48,835 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-03 17:03:48,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:48,835 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-03 17:03:48,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-03 17:03:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:48,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:48,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:48,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-03 17:03:48,843 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:48,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1697992736, now seen corresponding path program 65 times [2022-03-03 17:03:48,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:48,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107095980] [2022-03-03 17:03:48,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:48,958 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:48,958 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107095980] [2022-03-03 17:03:48,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107095980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:48,958 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:48,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:48,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636988374] [2022-03-03 17:03:48,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:48,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:48,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:48,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:48,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:48,959 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:49,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:49,379 INFO L93 Difference]: Finished difference Result 9156 states and 24171 transitions. [2022-03-03 17:03:49,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:49,380 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:49,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:49,390 INFO L225 Difference]: With dead ends: 9156 [2022-03-03 17:03:49,390 INFO L226 Difference]: Without dead ends: 8677 [2022-03-03 17:03:49,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=349, Invalid=1057, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:49,390 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 220 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:49,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2304 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8677 states. [2022-03-03 17:03:49,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8677 to 7698. [2022-03-03 17:03:49,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6420683383136288) internal successors, (20336), 7697 states have internal predecessors, (20336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20336 transitions. [2022-03-03 17:03:49,478 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20336 transitions. Word has length 109 [2022-03-03 17:03:49,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:49,479 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20336 transitions. [2022-03-03 17:03:49,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:49,479 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20336 transitions. [2022-03-03 17:03:49,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:49,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:49,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:49,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-03 17:03:49,486 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:49,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash -969451442, now seen corresponding path program 66 times [2022-03-03 17:03:49,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:49,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449416726] [2022-03-03 17:03:49,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:49,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:49,592 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:49,592 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449416726] [2022-03-03 17:03:49,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449416726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:49,592 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:49,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:49,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736654921] [2022-03-03 17:03:49,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:49,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:49,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:49,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:49,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:49,593 INFO L87 Difference]: Start difference. First operand 7698 states and 20336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:49,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:49,984 INFO L93 Difference]: Finished difference Result 9106 states and 24038 transitions. [2022-03-03 17:03:49,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:49,985 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:49,995 INFO L225 Difference]: With dead ends: 9106 [2022-03-03 17:03:49,995 INFO L226 Difference]: Without dead ends: 8614 [2022-03-03 17:03:49,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:03:49,995 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 208 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:49,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2720 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:50,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-03-03 17:03:50,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7682. [2022-03-03 17:03:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.643405806535607) internal successors, (20304), 7681 states have internal predecessors, (20304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20304 transitions. [2022-03-03 17:03:50,091 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20304 transitions. Word has length 109 [2022-03-03 17:03:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:50,091 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20304 transitions. [2022-03-03 17:03:50,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20304 transitions. [2022-03-03 17:03:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:50,100 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:50,100 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:50,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-03 17:03:50,100 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:50,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:50,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2065231170, now seen corresponding path program 67 times [2022-03-03 17:03:50,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:50,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802960147] [2022-03-03 17:03:50,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:50,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:50,210 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:50,210 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802960147] [2022-03-03 17:03:50,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802960147] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:50,210 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:50,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:50,210 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876272339] [2022-03-03 17:03:50,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:50,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:50,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:50,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:50,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:50,211 INFO L87 Difference]: Start difference. First operand 7682 states and 20304 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:50,637 INFO L93 Difference]: Finished difference Result 9048 states and 23882 transitions. [2022-03-03 17:03:50,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:03:50,638 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:50,650 INFO L225 Difference]: With dead ends: 9048 [2022-03-03 17:03:50,650 INFO L226 Difference]: Without dead ends: 8569 [2022-03-03 17:03:50,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:03:50,651 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 209 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:50,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2709 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:50,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2022-03-03 17:03:50,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 7698. [2022-03-03 17:03:50,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-03 17:03:50,768 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-03 17:03:50,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:50,768 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-03 17:03:50,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-03 17:03:50,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:50,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:50,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:50,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-03 17:03:50,777 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:50,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash -602213008, now seen corresponding path program 68 times [2022-03-03 17:03:50,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:50,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442138215] [2022-03-03 17:03:50,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:50,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:50,888 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:50,888 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442138215] [2022-03-03 17:03:50,888 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442138215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:50,888 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:50,888 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:50,888 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715909388] [2022-03-03 17:03:50,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:50,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:50,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:50,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:50,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:50,889 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:51,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:51,335 INFO L93 Difference]: Finished difference Result 9018 states and 23804 transitions. [2022-03-03 17:03:51,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:51,335 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:51,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:51,348 INFO L225 Difference]: With dead ends: 9018 [2022-03-03 17:03:51,348 INFO L226 Difference]: Without dead ends: 8538 [2022-03-03 17:03:51,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:51,349 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 196 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:51,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2884 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:51,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8538 states. [2022-03-03 17:03:51,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8538 to 7694. [2022-03-03 17:03:51,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:51,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-03 17:03:51,470 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-03 17:03:51,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:51,470 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-03 17:03:51,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:51,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-03 17:03:51,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:51,480 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:51,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:51,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-03 17:03:51,480 INFO L402 AbstractCegarLoop]: === Iteration 371 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:51,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:51,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1723270348, now seen corresponding path program 69 times [2022-03-03 17:03:51,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:51,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290614866] [2022-03-03 17:03:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:51,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:51,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:51,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290614866] [2022-03-03 17:03:51,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290614866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:51,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:51,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:51,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287667517] [2022-03-03 17:03:51,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:51,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:51,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:51,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:51,597 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:52,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:52,193 INFO L93 Difference]: Finished difference Result 9054 states and 23899 transitions. [2022-03-03 17:03:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:52,193 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:52,205 INFO L225 Difference]: With dead ends: 9054 [2022-03-03 17:03:52,205 INFO L226 Difference]: Without dead ends: 8534 [2022-03-03 17:03:52,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:03:52,206 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 279 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:52,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2815 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-03-03 17:03:52,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7690. [2022-03-03 17:03:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-03 17:03:52,330 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-03 17:03:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:52,330 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-03 17:03:52,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:52,330 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-03 17:03:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:52,340 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:52,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:52,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2022-03-03 17:03:52,340 INFO L402 AbstractCegarLoop]: === Iteration 372 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:52,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:52,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2046561412, now seen corresponding path program 70 times [2022-03-03 17:03:52,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:52,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817858866] [2022-03-03 17:03:52,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:52,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:52,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:52,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817858866] [2022-03-03 17:03:52,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817858866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:52,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:52,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:52,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225763354] [2022-03-03 17:03:52,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:52,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:52,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:52,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:52,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:52,448 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:53,068 INFO L93 Difference]: Finished difference Result 9090 states and 23994 transitions. [2022-03-03 17:03:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:03:53,068 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:53,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:53,082 INFO L225 Difference]: With dead ends: 9090 [2022-03-03 17:03:53,082 INFO L226 Difference]: Without dead ends: 8530 [2022-03-03 17:03:53,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2231, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:03:53,083 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 317 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 3066 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:53,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [317 Valid, 3066 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8530 states. [2022-03-03 17:03:53,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8530 to 7686. [2022-03-03 17:03:53,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:53,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-03-03 17:03:53,209 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-03-03 17:03:53,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:53,210 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-03-03 17:03:53,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-03-03 17:03:53,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:53,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:53,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:53,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2022-03-03 17:03:53,221 INFO L402 AbstractCegarLoop]: === Iteration 373 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:53,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:53,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1596112618, now seen corresponding path program 71 times [2022-03-03 17:03:53,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:53,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692878238] [2022-03-03 17:03:53,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:53,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:53,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:53,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692878238] [2022-03-03 17:03:53,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692878238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:53,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:53,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:53,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981005492] [2022-03-03 17:03:53,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:53,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:53,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:53,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:53,331 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:54,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:54,001 INFO L93 Difference]: Finished difference Result 9258 states and 24416 transitions. [2022-03-03 17:03:54,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 17:03:54,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:54,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:54,013 INFO L225 Difference]: With dead ends: 9258 [2022-03-03 17:03:54,013 INFO L226 Difference]: Without dead ends: 8654 [2022-03-03 17:03:54,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 931 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:03:54,013 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 413 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:54,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 3042 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:54,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-03-03 17:03:54,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7678. [2022-03-03 17:03:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6433502670313924) internal successors, (20293), 7677 states have internal predecessors, (20293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20293 transitions. [2022-03-03 17:03:54,108 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20293 transitions. Word has length 109 [2022-03-03 17:03:54,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:54,108 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20293 transitions. [2022-03-03 17:03:54,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20293 transitions. [2022-03-03 17:03:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:54,116 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:54,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:54,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2022-03-03 17:03:54,116 INFO L402 AbstractCegarLoop]: === Iteration 374 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:54,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash 33730372, now seen corresponding path program 72 times [2022-03-03 17:03:54,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:54,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728475577] [2022-03-03 17:03:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:54,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:54,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:54,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728475577] [2022-03-03 17:03:54,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728475577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:54,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:54,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:54,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959469925] [2022-03-03 17:03:54,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:54,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:54,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:54,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:54,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:54,225 INFO L87 Difference]: Start difference. First operand 7678 states and 20293 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:54,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:54,648 INFO L93 Difference]: Finished difference Result 9208 states and 24322 transitions. [2022-03-03 17:03:54,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:03:54,648 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:54,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:54,660 INFO L225 Difference]: With dead ends: 9208 [2022-03-03 17:03:54,660 INFO L226 Difference]: Without dead ends: 8729 [2022-03-03 17:03:54,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:03:54,660 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 221 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:54,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2725 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8729 states. [2022-03-03 17:03:54,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8729 to 7698. [2022-03-03 17:03:54,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:54,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-03 17:03:54,761 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-03 17:03:54,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:54,761 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-03 17:03:54,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-03 17:03:54,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:54,769 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:54,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:54,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2022-03-03 17:03:54,770 INFO L402 AbstractCegarLoop]: === Iteration 375 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:54,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:54,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1661253490, now seen corresponding path program 73 times [2022-03-03 17:03:54,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:54,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276910509] [2022-03-03 17:03:54,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:54,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:54,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:54,876 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276910509] [2022-03-03 17:03:54,876 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276910509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:54,876 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:54,876 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:54,876 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754289883] [2022-03-03 17:03:54,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:54,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:54,876 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:54,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:54,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:54,877 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:55,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:55,318 INFO L93 Difference]: Finished difference Result 9174 states and 24233 transitions. [2022-03-03 17:03:55,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:55,318 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:55,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:55,331 INFO L225 Difference]: With dead ends: 9174 [2022-03-03 17:03:55,332 INFO L226 Difference]: Without dead ends: 8694 [2022-03-03 17:03:55,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1089, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:55,332 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 212 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:55,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 2882 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:55,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8694 states. [2022-03-03 17:03:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8694 to 7694. [2022-03-03 17:03:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:55,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-03 17:03:55,451 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-03 17:03:55,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:55,451 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-03 17:03:55,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:55,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-03 17:03:55,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:55,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:55,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:55,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2022-03-03 17:03:55,461 INFO L402 AbstractCegarLoop]: === Iteration 376 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:55,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash 540196150, now seen corresponding path program 74 times [2022-03-03 17:03:55,462 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:55,462 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301927398] [2022-03-03 17:03:55,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:55,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:55,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:55,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301927398] [2022-03-03 17:03:55,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301927398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:55,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:55,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:55,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632166378] [2022-03-03 17:03:55,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:55,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:55,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:55,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:55,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:55,568 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:56,081 INFO L93 Difference]: Finished difference Result 9210 states and 24328 transitions. [2022-03-03 17:03:56,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:56,081 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:56,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:56,093 INFO L225 Difference]: With dead ends: 9210 [2022-03-03 17:03:56,093 INFO L226 Difference]: Without dead ends: 8690 [2022-03-03 17:03:56,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1606, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:03:56,093 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 288 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:56,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2813 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:56,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8690 states. [2022-03-03 17:03:56,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8690 to 7690. [2022-03-03 17:03:56,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:56,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-03 17:03:56,191 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-03 17:03:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:56,191 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-03 17:03:56,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:56,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-03 17:03:56,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:56,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:56,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:56,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2022-03-03 17:03:56,199 INFO L402 AbstractCegarLoop]: === Iteration 377 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:56,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:56,200 INFO L85 PathProgramCache]: Analyzing trace with hash 15060614, now seen corresponding path program 75 times [2022-03-03 17:03:56,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:56,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255620833] [2022-03-03 17:03:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:56,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:56,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:56,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255620833] [2022-03-03 17:03:56,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255620833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:56,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:56,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:56,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749961174] [2022-03-03 17:03:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:56,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:56,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:56,309 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:56,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:56,895 INFO L93 Difference]: Finished difference Result 9354 states and 24696 transitions. [2022-03-03 17:03:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:03:56,895 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:56,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:56,906 INFO L225 Difference]: With dead ends: 9354 [2022-03-03 17:03:56,906 INFO L226 Difference]: Without dead ends: 8794 [2022-03-03 17:03:56,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=619, Invalid=2033, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:03:56,907 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 348 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:56,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 3021 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:56,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2022-03-03 17:03:56,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 7686. [2022-03-03 17:03:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:57,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-03-03 17:03:57,009 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-03-03 17:03:57,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:57,009 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-03-03 17:03:57,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:57,009 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-03-03 17:03:57,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:57,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:57,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:57,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2022-03-03 17:03:57,017 INFO L402 AbstractCegarLoop]: === Iteration 378 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:57,017 INFO L85 PathProgramCache]: Analyzing trace with hash -175252790, now seen corresponding path program 76 times [2022-03-03 17:03:57,018 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:57,018 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341020313] [2022-03-03 17:03:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:57,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:57,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:57,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341020313] [2022-03-03 17:03:57,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341020313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:57,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:57,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:57,124 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921494021] [2022-03-03 17:03:57,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:57,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:57,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:57,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:57,124 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:57,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:57,560 INFO L93 Difference]: Finished difference Result 9280 states and 24516 transitions. [2022-03-03 17:03:57,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:03:57,560 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:57,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:57,572 INFO L225 Difference]: With dead ends: 9280 [2022-03-03 17:03:57,572 INFO L226 Difference]: Without dead ends: 8801 [2022-03-03 17:03:57,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:03:57,572 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 216 mSDsluCounter, 2701 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:57,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2894 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8801 states. [2022-03-03 17:03:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8801 to 7698. [2022-03-03 17:03:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:57,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-03 17:03:57,667 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-03 17:03:57,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:57,667 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-03 17:03:57,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:57,667 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-03 17:03:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:57,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:57,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:57,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2022-03-03 17:03:57,675 INFO L402 AbstractCegarLoop]: === Iteration 379 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:57,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1452270328, now seen corresponding path program 77 times [2022-03-03 17:03:57,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:57,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291983798] [2022-03-03 17:03:57,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:57,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:57,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:57,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291983798] [2022-03-03 17:03:57,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291983798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:57,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:57,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:57,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647081455] [2022-03-03 17:03:57,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:57,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:57,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:57,787 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:58,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:58,239 INFO L93 Difference]: Finished difference Result 9238 states and 24405 transitions. [2022-03-03 17:03:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:03:58,240 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:58,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:58,250 INFO L225 Difference]: With dead ends: 9238 [2022-03-03 17:03:58,251 INFO L226 Difference]: Without dead ends: 8758 [2022-03-03 17:03:58,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:03:58,251 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 214 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:58,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2894 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:03:58,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8758 states. [2022-03-03 17:03:58,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8758 to 7694. [2022-03-03 17:03:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:58,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-03 17:03:58,348 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-03 17:03:58,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:58,348 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-03 17:03:58,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:58,348 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-03 17:03:58,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:58,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:58,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:58,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2022-03-03 17:03:58,356 INFO L402 AbstractCegarLoop]: === Iteration 380 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:58,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:58,357 INFO L85 PathProgramCache]: Analyzing trace with hash 331212988, now seen corresponding path program 78 times [2022-03-03 17:03:58,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:58,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801411045] [2022-03-03 17:03:58,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:58,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:58,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:58,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801411045] [2022-03-03 17:03:58,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801411045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:58,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:58,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:58,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13738351] [2022-03-03 17:03:58,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:58,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:58,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:58,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:58,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:58,461 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:58,975 INFO L93 Difference]: Finished difference Result 9366 states and 24737 transitions. [2022-03-03 17:03:58,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:03:58,975 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:58,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:58,986 INFO L225 Difference]: With dead ends: 9366 [2022-03-03 17:03:58,986 INFO L226 Difference]: Without dead ends: 8846 [2022-03-03 17:03:58,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1528, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:03:58,986 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 290 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2964 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:58,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2964 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:58,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-03-03 17:03:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7690. [2022-03-03 17:03:59,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:59,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-03 17:03:59,083 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-03 17:03:59,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:59,083 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-03 17:03:59,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-03 17:03:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:59,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:59,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:59,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2022-03-03 17:03:59,091 INFO L402 AbstractCegarLoop]: === Iteration 381 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:59,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:59,091 INFO L85 PathProgramCache]: Analyzing trace with hash 403842712, now seen corresponding path program 79 times [2022-03-03 17:03:59,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:59,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925616235] [2022-03-03 17:03:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:59,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:59,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:59,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925616235] [2022-03-03 17:03:59,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925616235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:59,206 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:59,206 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:59,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269801973] [2022-03-03 17:03:59,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:59,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:59,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:59,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:59,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:59,207 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:59,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:59,737 INFO L93 Difference]: Finished difference Result 9368 states and 24729 transitions. [2022-03-03 17:03:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:03:59,738 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:03:59,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:59,749 INFO L225 Difference]: With dead ends: 9368 [2022-03-03 17:03:59,749 INFO L226 Difference]: Without dead ends: 8846 [2022-03-03 17:03:59,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=476, Invalid=1416, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:03:59,749 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 280 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:59,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 2615 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:03:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8846 states. [2022-03-03 17:03:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 7694. [2022-03-03 17:03:59,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:59,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-03 17:03:59,845 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-03 17:03:59,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:59,845 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-03 17:03:59,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:59,845 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-03 17:03:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:03:59,854 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:59,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:59,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable380 [2022-03-03 17:03:59,854 INFO L402 AbstractCegarLoop]: === Iteration 382 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1154072638, now seen corresponding path program 80 times [2022-03-03 17:03:59,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:59,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704423285] [2022-03-03 17:03:59,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:59,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:59,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:59,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704423285] [2022-03-03 17:03:59,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704423285] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:59,962 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:59,962 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:03:59,962 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079308596] [2022-03-03 17:03:59,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:59,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:03:59,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:59,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:03:59,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:03:59,963 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:00,380 INFO L93 Difference]: Finished difference Result 9220 states and 24343 transitions. [2022-03-03 17:04:00,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:00,380 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:00,391 INFO L225 Difference]: With dead ends: 9220 [2022-03-03 17:04:00,391 INFO L226 Difference]: Without dead ends: 8741 [2022-03-03 17:04:00,391 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:00,391 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 214 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:00,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2468 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2022-03-03 17:04:00,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 7698. [2022-03-03 17:04:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-03 17:04:00,489 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-03 17:04:00,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:00,489 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-03 17:04:00,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-03 17:04:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:00,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:00,498 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:00,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable381 [2022-03-03 17:04:00,498 INFO L402 AbstractCegarLoop]: === Iteration 383 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:00,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:00,498 INFO L85 PathProgramCache]: Analyzing trace with hash 473450480, now seen corresponding path program 81 times [2022-03-03 17:04:00,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:00,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577391235] [2022-03-03 17:04:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:00,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:00,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:00,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577391235] [2022-03-03 17:04:00,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577391235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:00,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:00,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:00,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691751272] [2022-03-03 17:04:00,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:00,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:00,610 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:00,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:00,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:00,611 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:01,033 INFO L93 Difference]: Finished difference Result 9138 states and 24122 transitions. [2022-03-03 17:04:01,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:01,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:01,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:01,047 INFO L225 Difference]: With dead ends: 9138 [2022-03-03 17:04:01,047 INFO L226 Difference]: Without dead ends: 8646 [2022-03-03 17:04:01,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:01,047 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 203 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:01,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2874 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:01,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8646 states. [2022-03-03 17:04:01,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8646 to 7682. [2022-03-03 17:04:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-03-03 17:04:01,153 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-03-03 17:04:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:01,153 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-03-03 17:04:01,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-03-03 17:04:01,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:01,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:01,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:01,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable382 [2022-03-03 17:04:01,162 INFO L402 AbstractCegarLoop]: === Iteration 384 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:01,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:01,162 INFO L85 PathProgramCache]: Analyzing trace with hash -223288894, now seen corresponding path program 82 times [2022-03-03 17:04:01,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:01,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019712990] [2022-03-03 17:04:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:01,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:01,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:01,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:01,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019712990] [2022-03-03 17:04:01,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019712990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:01,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:01,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:01,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798101176] [2022-03-03 17:04:01,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:01,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:01,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:01,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:01,314 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:01,763 INFO L93 Difference]: Finished difference Result 9176 states and 24230 transitions. [2022-03-03 17:04:01,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:01,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:01,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:01,779 INFO L225 Difference]: With dead ends: 9176 [2022-03-03 17:04:01,780 INFO L226 Difference]: Without dead ends: 8697 [2022-03-03 17:04:01,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:01,780 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 224 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:01,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2294 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:01,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-03-03 17:04:01,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-03-03 17:04:01,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:01,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-03 17:04:01,906 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-03 17:04:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:01,906 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-03 17:04:01,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-03 17:04:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:01,915 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:01,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:01,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable383 [2022-03-03 17:04:01,915 INFO L402 AbstractCegarLoop]: === Iteration 385 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:01,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:01,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1404234224, now seen corresponding path program 83 times [2022-03-03 17:04:01,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:01,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678956478] [2022-03-03 17:04:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:01,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:02,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:02,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:02,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678956478] [2022-03-03 17:04:02,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678956478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:02,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:02,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:02,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128809901] [2022-03-03 17:04:02,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:02,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:02,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:02,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:02,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:02,031 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:02,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:02,491 INFO L93 Difference]: Finished difference Result 9134 states and 24119 transitions. [2022-03-03 17:04:02,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:02,492 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:02,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:02,505 INFO L225 Difference]: With dead ends: 9134 [2022-03-03 17:04:02,505 INFO L226 Difference]: Without dead ends: 8654 [2022-03-03 17:04:02,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=327, Invalid=1079, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:02,506 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 215 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:02,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2718 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2022-03-03 17:04:02,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 7694. [2022-03-03 17:04:02,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-03 17:04:02,626 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-03 17:04:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:02,626 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-03 17:04:02,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-03 17:04:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:02,635 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:02,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:02,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable384 [2022-03-03 17:04:02,636 INFO L402 AbstractCegarLoop]: === Iteration 386 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:02,636 INFO L85 PathProgramCache]: Analyzing trace with hash 283176884, now seen corresponding path program 84 times [2022-03-03 17:04:02,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:02,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409888314] [2022-03-03 17:04:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:02,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:02,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:02,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:02,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409888314] [2022-03-03 17:04:02,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409888314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:02,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:02,750 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:02,750 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62691143] [2022-03-03 17:04:02,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:02,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:02,750 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:02,750 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:03,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:03,306 INFO L93 Difference]: Finished difference Result 9242 states and 24396 transitions. [2022-03-03 17:04:03,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:04:03,306 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:03,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:03,318 INFO L225 Difference]: With dead ends: 9242 [2022-03-03 17:04:03,318 INFO L226 Difference]: Without dead ends: 8722 [2022-03-03 17:04:03,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:04:03,319 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 289 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:03,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2777 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8722 states. [2022-03-03 17:04:03,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8722 to 7690. [2022-03-03 17:04:03,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-03 17:04:03,421 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-03 17:04:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:03,422 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-03 17:04:03,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-03 17:04:03,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:03,430 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:03,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:03,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable385 [2022-03-03 17:04:03,430 INFO L402 AbstractCegarLoop]: === Iteration 387 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:03,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash 355806608, now seen corresponding path program 85 times [2022-03-03 17:04:03,430 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:03,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408118772] [2022-03-03 17:04:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:03,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:03,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:03,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408118772] [2022-03-03 17:04:03,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408118772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:03,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:03,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:03,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219307980] [2022-03-03 17:04:03,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:03,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:03,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:03,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:03,542 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:04,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:04,109 INFO L93 Difference]: Finished difference Result 9340 states and 24652 transitions. [2022-03-03 17:04:04,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:04,109 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:04,119 INFO L225 Difference]: With dead ends: 9340 [2022-03-03 17:04:04,119 INFO L226 Difference]: Without dead ends: 8818 [2022-03-03 17:04:04,119 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:04:04,119 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 302 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:04,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2363 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:04,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8818 states. [2022-03-03 17:04:04,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8818 to 7694. [2022-03-03 17:04:04,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-03 17:04:04,213 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-03 17:04:04,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:04,213 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-03 17:04:04,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-03 17:04:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:04,221 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:04,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:04,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable386 [2022-03-03 17:04:04,222 INFO L402 AbstractCegarLoop]: === Iteration 388 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:04,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:04,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1202108742, now seen corresponding path program 86 times [2022-03-03 17:04:04,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:04,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323383677] [2022-03-03 17:04:04,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:04,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:04,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:04,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323383677] [2022-03-03 17:04:04,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323383677] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:04,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:04,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:04,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127944201] [2022-03-03 17:04:04,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:04,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:04,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:04,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:04,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:04,334 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:04,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:04,749 INFO L93 Difference]: Finished difference Result 9176 states and 24222 transitions. [2022-03-03 17:04:04,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:04,750 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:04,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:04,760 INFO L225 Difference]: With dead ends: 9176 [2022-03-03 17:04:04,760 INFO L226 Difference]: Without dead ends: 8697 [2022-03-03 17:04:04,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:04,761 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 229 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:04,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2442 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:04,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8697 states. [2022-03-03 17:04:04,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8697 to 7698. [2022-03-03 17:04:04,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-03 17:04:04,853 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-03 17:04:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:04,854 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-03 17:04:04,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:04,854 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-03 17:04:04,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:04,861 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:04,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:04,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable387 [2022-03-03 17:04:04,862 INFO L402 AbstractCegarLoop]: === Iteration 389 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:04,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:04,862 INFO L85 PathProgramCache]: Analyzing trace with hash 425414376, now seen corresponding path program 87 times [2022-03-03 17:04:04,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:04,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660451109] [2022-03-03 17:04:04,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:04,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:04,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:04,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660451109] [2022-03-03 17:04:04,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660451109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:04,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:04,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:04,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795113697] [2022-03-03 17:04:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:04,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:04,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:04,967 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:05,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:05,375 INFO L93 Difference]: Finished difference Result 9110 states and 24045 transitions. [2022-03-03 17:04:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:05,375 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:05,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:05,386 INFO L225 Difference]: With dead ends: 9110 [2022-03-03 17:04:05,386 INFO L226 Difference]: Without dead ends: 8622 [2022-03-03 17:04:05,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:05,387 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 216 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:05,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2834 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:05,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8622 states. [2022-03-03 17:04:05,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8622 to 7686. [2022-03-03 17:04:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:05,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-03-03 17:04:05,480 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-03-03 17:04:05,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:05,481 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-03-03 17:04:05,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:05,481 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-03-03 17:04:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:05,489 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:05,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:05,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable388 [2022-03-03 17:04:05,489 INFO L402 AbstractCegarLoop]: === Iteration 390 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:05,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:05,489 INFO L85 PathProgramCache]: Analyzing trace with hash -856929724, now seen corresponding path program 88 times [2022-03-03 17:04:05,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:05,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499991955] [2022-03-03 17:04:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:05,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:05,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:05,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499991955] [2022-03-03 17:04:05,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499991955] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:05,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:05,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:05,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24632918] [2022-03-03 17:04:05,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:05,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:05,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:05,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:05,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:05,602 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:06,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:06,271 INFO L93 Difference]: Finished difference Result 9333 states and 24614 transitions. [2022-03-03 17:04:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:04:06,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:06,284 INFO L225 Difference]: With dead ends: 9333 [2022-03-03 17:04:06,284 INFO L226 Difference]: Without dead ends: 8768 [2022-03-03 17:04:06,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 17:04:06,284 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 355 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:06,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 2777 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:06,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-03-03 17:04:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 7690. [2022-03-03 17:04:06,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-03-03 17:04:06,392 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-03-03 17:04:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:06,392 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-03-03 17:04:06,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-03-03 17:04:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:06,401 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:06,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:06,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable389 [2022-03-03 17:04:06,401 INFO L402 AbstractCegarLoop]: === Iteration 391 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:06,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash 7501338, now seen corresponding path program 89 times [2022-03-03 17:04:06,401 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:06,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695878000] [2022-03-03 17:04:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:06,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:06,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:06,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695878000] [2022-03-03 17:04:06,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695878000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:06,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:06,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:06,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184570841] [2022-03-03 17:04:06,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:06,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:06,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:06,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:06,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:06,513 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:07,068 INFO L93 Difference]: Finished difference Result 9220 states and 24318 transitions. [2022-03-03 17:04:07,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:07,069 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:07,079 INFO L225 Difference]: With dead ends: 9220 [2022-03-03 17:04:07,079 INFO L226 Difference]: Without dead ends: 8698 [2022-03-03 17:04:07,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:07,080 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 297 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 2511 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:07,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [297 Valid, 2511 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8698 states. [2022-03-03 17:04:07,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8698 to 7694. [2022-03-03 17:04:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-03-03 17:04:07,171 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-03-03 17:04:07,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:07,171 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-03-03 17:04:07,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-03-03 17:04:07,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:07,179 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:07,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:07,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable390 [2022-03-03 17:04:07,179 INFO L402 AbstractCegarLoop]: === Iteration 392 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:07,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:07,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1550414012, now seen corresponding path program 90 times [2022-03-03 17:04:07,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:07,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829961151] [2022-03-03 17:04:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:07,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:07,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:07,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829961151] [2022-03-03 17:04:07,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829961151] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:07,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:07,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:07,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155203142] [2022-03-03 17:04:07,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:07,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:07,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:07,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:07,291 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:07,712 INFO L93 Difference]: Finished difference Result 9080 states and 23954 transitions. [2022-03-03 17:04:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:07,712 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:07,723 INFO L225 Difference]: With dead ends: 9080 [2022-03-03 17:04:07,723 INFO L226 Difference]: Without dead ends: 8601 [2022-03-03 17:04:07,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:07,724 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 235 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:07,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2633 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8601 states. [2022-03-03 17:04:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8601 to 7698. [2022-03-03 17:04:07,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-03-03 17:04:07,817 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-03-03 17:04:07,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:07,817 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-03-03 17:04:07,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-03-03 17:04:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:07,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:07,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:07,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable391 [2022-03-03 17:04:07,825 INFO L402 AbstractCegarLoop]: === Iteration 393 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:07,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:07,825 INFO L85 PathProgramCache]: Analyzing trace with hash 77109106, now seen corresponding path program 91 times [2022-03-03 17:04:07,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:07,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954300110] [2022-03-03 17:04:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:07,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:07,935 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:07,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954300110] [2022-03-03 17:04:07,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954300110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:07,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:07,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:07,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722203348] [2022-03-03 17:04:07,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:07,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:07,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:07,936 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:08,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:08,308 INFO L93 Difference]: Finished difference Result 8970 states and 23656 transitions. [2022-03-03 17:04:08,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:04:08,308 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:08,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:08,321 INFO L225 Difference]: With dead ends: 8970 [2022-03-03 17:04:08,322 INFO L226 Difference]: Without dead ends: 8470 [2022-03-03 17:04:08,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:04:08,322 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 213 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:08,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2239 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:08,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2022-03-03 17:04:08,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 7674. [2022-03-03 17:04:08,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7674 states, 7673 states have (on average 2.643294669620748) internal successors, (20282), 7673 states have internal predecessors, (20282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7674 states to 7674 states and 20282 transitions. [2022-03-03 17:04:08,425 INFO L78 Accepts]: Start accepts. Automaton has 7674 states and 20282 transitions. Word has length 109 [2022-03-03 17:04:08,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:08,426 INFO L470 AbstractCegarLoop]: Abstraction has 7674 states and 20282 transitions. [2022-03-03 17:04:08,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7674 states and 20282 transitions. [2022-03-03 17:04:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:08,434 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:08,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:08,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable392 [2022-03-03 17:04:08,434 INFO L402 AbstractCegarLoop]: === Iteration 394 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:08,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash 882893914, now seen corresponding path program 92 times [2022-03-03 17:04:08,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:08,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418564979] [2022-03-03 17:04:08,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:08,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:08,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:08,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418564979] [2022-03-03 17:04:08,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418564979] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:08,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:08,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:08,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284626337] [2022-03-03 17:04:08,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:08,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:08,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:08,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:08,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:08,542 INFO L87 Difference]: Start difference. First operand 7674 states and 20282 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:08,931 INFO L93 Difference]: Finished difference Result 9008 states and 23772 transitions. [2022-03-03 17:04:08,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:04:08,931 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:08,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:08,942 INFO L225 Difference]: With dead ends: 9008 [2022-03-03 17:04:08,942 INFO L226 Difference]: Without dead ends: 8529 [2022-03-03 17:04:08,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:08,943 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 207 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2274 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:08,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 2274 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:08,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8529 states. [2022-03-03 17:04:09,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8529 to 7698. [2022-03-03 17:04:09,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.643107704300377) internal successors, (20344), 7697 states have internal predecessors, (20344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20344 transitions. [2022-03-03 17:04:09,044 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20344 transitions. Word has length 109 [2022-03-03 17:04:09,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:09,044 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20344 transitions. [2022-03-03 17:04:09,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20344 transitions. [2022-03-03 17:04:09,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:09,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:09,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:09,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable393 [2022-03-03 17:04:09,053 INFO L402 AbstractCegarLoop]: === Iteration 395 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:09,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:09,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1784550264, now seen corresponding path program 93 times [2022-03-03 17:04:09,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:09,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847562060] [2022-03-03 17:04:09,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:09,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:09,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:09,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:09,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847562060] [2022-03-03 17:04:09,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847562060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:09,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:09,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:09,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981321173] [2022-03-03 17:04:09,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:09,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:09,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:09,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:09,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:09,160 INFO L87 Difference]: Start difference. First operand 7698 states and 20344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:09,595 INFO L93 Difference]: Finished difference Result 8974 states and 23683 transitions. [2022-03-03 17:04:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:09,596 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:09,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:09,607 INFO L225 Difference]: With dead ends: 8974 [2022-03-03 17:04:09,607 INFO L226 Difference]: Without dead ends: 8494 [2022-03-03 17:04:09,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:09,607 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 200 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:09,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2849 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:09,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-03-03 17:04:09,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7694. [2022-03-03 17:04:09,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.643052125308722) internal successors, (20333), 7693 states have internal predecessors, (20333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20333 transitions. [2022-03-03 17:04:09,718 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20333 transitions. Word has length 109 [2022-03-03 17:04:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:09,718 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20333 transitions. [2022-03-03 17:04:09,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20333 transitions. [2022-03-03 17:04:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:09,726 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:09,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:09,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable394 [2022-03-03 17:04:09,727 INFO L402 AbstractCegarLoop]: === Iteration 396 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:09,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:09,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1389359692, now seen corresponding path program 94 times [2022-03-03 17:04:09,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:09,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097824658] [2022-03-03 17:04:09,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:09,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:09,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:09,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:09,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097824658] [2022-03-03 17:04:09,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097824658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:09,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:09,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:09,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701257433] [2022-03-03 17:04:09,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:09,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:09,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:09,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:09,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:09,832 INFO L87 Difference]: Start difference. First operand 7694 states and 20333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:10,350 INFO L93 Difference]: Finished difference Result 9010 states and 23778 transitions. [2022-03-03 17:04:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:10,350 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:10,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:10,362 INFO L225 Difference]: With dead ends: 9010 [2022-03-03 17:04:10,362 INFO L226 Difference]: Without dead ends: 8490 [2022-03-03 17:04:10,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=475, Invalid=1595, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:10,363 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 275 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:10,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [275 Valid, 2616 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:10,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8490 states. [2022-03-03 17:04:10,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8490 to 7690. [2022-03-03 17:04:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6429964884900508) internal successors, (20322), 7689 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20322 transitions. [2022-03-03 17:04:10,460 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20322 transitions. Word has length 109 [2022-03-03 17:04:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:10,461 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20322 transitions. [2022-03-03 17:04:10,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:10,461 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20322 transitions. [2022-03-03 17:04:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:10,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:10,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:10,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable395 [2022-03-03 17:04:10,469 INFO L402 AbstractCegarLoop]: === Iteration 397 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:10,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:10,470 INFO L85 PathProgramCache]: Analyzing trace with hash 864224156, now seen corresponding path program 95 times [2022-03-03 17:04:10,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:10,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266681922] [2022-03-03 17:04:10,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:10,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:10,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:10,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266681922] [2022-03-03 17:04:10,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266681922] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:10,579 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:10,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:10,580 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908690699] [2022-03-03 17:04:10,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:10,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:10,580 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:10,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:10,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:10,580 INFO L87 Difference]: Start difference. First operand 7690 states and 20322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:11,134 INFO L93 Difference]: Finished difference Result 9126 states and 24069 transitions. [2022-03-03 17:04:11,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:04:11,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:11,144 INFO L225 Difference]: With dead ends: 9126 [2022-03-03 17:04:11,145 INFO L226 Difference]: Without dead ends: 8566 [2022-03-03 17:04:11,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=614, Invalid=1936, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 17:04:11,145 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 345 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2640 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:11,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [345 Valid, 2640 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:11,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8566 states. [2022-03-03 17:04:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8566 to 7686. [2022-03-03 17:04:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6429407937540663) internal successors, (20311), 7685 states have internal predecessors, (20311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:11,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20311 transitions. [2022-03-03 17:04:11,241 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20311 transitions. Word has length 109 [2022-03-03 17:04:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:11,242 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20311 transitions. [2022-03-03 17:04:11,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20311 transitions. [2022-03-03 17:04:11,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:11,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:11,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:11,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable396 [2022-03-03 17:04:11,251 INFO L402 AbstractCegarLoop]: === Iteration 398 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:11,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:11,251 INFO L85 PathProgramCache]: Analyzing trace with hash 673910752, now seen corresponding path program 96 times [2022-03-03 17:04:11,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:11,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310846408] [2022-03-03 17:04:11,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:11,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:11,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:11,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310846408] [2022-03-03 17:04:11,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310846408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:11,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:11,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:11,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748509037] [2022-03-03 17:04:11,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:11,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:11,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:11,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:11,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:11,358 INFO L87 Difference]: Start difference. First operand 7686 states and 20311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:11,762 INFO L93 Difference]: Finished difference Result 9076 states and 23955 transitions. [2022-03-03 17:04:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:11,763 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:11,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:11,775 INFO L225 Difference]: With dead ends: 9076 [2022-03-03 17:04:11,775 INFO L226 Difference]: Without dead ends: 8597 [2022-03-03 17:04:11,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:11,776 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 235 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:11,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2469 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:11,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8597 states. [2022-03-03 17:04:11,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8597 to 7698. [2022-03-03 17:04:11,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-03 17:04:11,869 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-03 17:04:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:11,869 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-03 17:04:11,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:11,869 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-03 17:04:11,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:11,877 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:11,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:11,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable397 [2022-03-03 17:04:11,877 INFO L402 AbstractCegarLoop]: === Iteration 399 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:11,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1993533426, now seen corresponding path program 97 times [2022-03-03 17:04:11,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:11,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350527624] [2022-03-03 17:04:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:11,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:11,983 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:11,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350527624] [2022-03-03 17:04:11,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350527624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:11,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:11,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:11,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305875863] [2022-03-03 17:04:11,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:11,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:11,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:11,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:11,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:11,984 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:12,395 INFO L93 Difference]: Finished difference Result 9034 states and 23844 transitions. [2022-03-03 17:04:12,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:12,396 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:12,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:12,407 INFO L225 Difference]: With dead ends: 9034 [2022-03-03 17:04:12,407 INFO L226 Difference]: Without dead ends: 8554 [2022-03-03 17:04:12,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:12,407 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 233 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:12,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2509 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:12,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2022-03-03 17:04:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 7694. [2022-03-03 17:04:12,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:12,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-03 17:04:12,510 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-03 17:04:12,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:12,510 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-03 17:04:12,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:12,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-03 17:04:12,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:12,518 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:12,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:12,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable398 [2022-03-03 17:04:12,518 INFO L402 AbstractCegarLoop]: === Iteration 400 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:12,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:12,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1180376530, now seen corresponding path program 98 times [2022-03-03 17:04:12,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:12,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960242106] [2022-03-03 17:04:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:12,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:12,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:12,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960242106] [2022-03-03 17:04:12,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960242106] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:12,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:12,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:12,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2290437] [2022-03-03 17:04:12,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:12,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:12,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:12,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:12,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:12,622 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:13,104 INFO L93 Difference]: Finished difference Result 9162 states and 24176 transitions. [2022-03-03 17:04:13,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:13,105 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:13,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:13,115 INFO L225 Difference]: With dead ends: 9162 [2022-03-03 17:04:13,115 INFO L226 Difference]: Without dead ends: 8642 [2022-03-03 17:04:13,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=463, Invalid=1517, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:04:13,115 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 301 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:13,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2719 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:13,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-03-03 17:04:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7690. [2022-03-03 17:04:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-03 17:04:13,208 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-03 17:04:13,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:13,208 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-03 17:04:13,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-03 17:04:13,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:13,216 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:13,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:13,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable399 [2022-03-03 17:04:13,216 INFO L402 AbstractCegarLoop]: === Iteration 401 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:13,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:13,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1253006254, now seen corresponding path program 99 times [2022-03-03 17:04:13,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:13,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222648592] [2022-03-03 17:04:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:13,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:13,323 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:13,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222648592] [2022-03-03 17:04:13,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222648592] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:13,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:13,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:13,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925456894] [2022-03-03 17:04:13,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:13,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:13,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:13,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:13,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:13,324 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:13,858 INFO L93 Difference]: Finished difference Result 9164 states and 24168 transitions. [2022-03-03 17:04:13,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:04:13,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:13,868 INFO L225 Difference]: With dead ends: 9164 [2022-03-03 17:04:13,869 INFO L226 Difference]: Without dead ends: 8642 [2022-03-03 17:04:13,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:04:13,869 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 282 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:13,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2482 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:13,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8642 states. [2022-03-03 17:04:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8642 to 7694. [2022-03-03 17:04:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-03 17:04:13,960 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-03 17:04:13,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:13,960 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-03 17:04:13,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,961 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-03 17:04:13,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:13,968 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:13,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:13,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable400 [2022-03-03 17:04:13,968 INFO L402 AbstractCegarLoop]: === Iteration 402 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:13,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:13,969 INFO L85 PathProgramCache]: Analyzing trace with hash -304909096, now seen corresponding path program 100 times [2022-03-03 17:04:13,969 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:13,969 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873189843] [2022-03-03 17:04:13,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:13,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:14,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:14,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873189843] [2022-03-03 17:04:14,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873189843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:14,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:14,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:14,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891765495] [2022-03-03 17:04:14,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:14,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:14,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:14,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:14,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:14,076 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:14,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:14,517 INFO L93 Difference]: Finished difference Result 9016 states and 23782 transitions. [2022-03-03 17:04:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:14,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:14,528 INFO L225 Difference]: With dead ends: 9016 [2022-03-03 17:04:14,528 INFO L226 Difference]: Without dead ends: 8537 [2022-03-03 17:04:14,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:14,528 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2134 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:14,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2330 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:14,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8537 states. [2022-03-03 17:04:14,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8537 to 7698. [2022-03-03 17:04:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:14,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-03 17:04:14,625 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-03 17:04:14,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:14,625 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-03 17:04:14,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:14,625 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-03 17:04:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:14,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:14,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:14,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable401 [2022-03-03 17:04:14,633 INFO L402 AbstractCegarLoop]: === Iteration 403 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:14,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1322614022, now seen corresponding path program 101 times [2022-03-03 17:04:14,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:14,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580254401] [2022-03-03 17:04:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:14,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:14,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:14,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580254401] [2022-03-03 17:04:14,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580254401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:14,740 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:14,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:14,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159768734] [2022-03-03 17:04:14,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:14,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:14,741 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:14,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:14,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:14,741 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:15,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:15,134 INFO L93 Difference]: Finished difference Result 8934 states and 23561 transitions. [2022-03-03 17:04:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:15,134 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:15,145 INFO L225 Difference]: With dead ends: 8934 [2022-03-03 17:04:15,145 INFO L226 Difference]: Without dead ends: 8442 [2022-03-03 17:04:15,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:15,145 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 211 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:15,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2487 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:15,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2022-03-03 17:04:15,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 7682. [2022-03-03 17:04:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642885041010285) internal successors, (20300), 7681 states have internal predecessors, (20300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20300 transitions. [2022-03-03 17:04:15,263 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20300 transitions. Word has length 109 [2022-03-03 17:04:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:15,263 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20300 transitions. [2022-03-03 17:04:15,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20300 transitions. [2022-03-03 17:04:15,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:15,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:15,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:15,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable402 [2022-03-03 17:04:15,271 INFO L402 AbstractCegarLoop]: === Iteration 404 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:15,272 INFO L85 PathProgramCache]: Analyzing trace with hash 625874648, now seen corresponding path program 102 times [2022-03-03 17:04:15,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:15,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024425628] [2022-03-03 17:04:15,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:15,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:15,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:15,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:15,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024425628] [2022-03-03 17:04:15,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024425628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:15,377 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:15,377 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:15,377 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424238637] [2022-03-03 17:04:15,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:15,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:15,378 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:15,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:15,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:15,378 INFO L87 Difference]: Start difference. First operand 7682 states and 20300 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:15,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:15,779 INFO L93 Difference]: Finished difference Result 9112 states and 24054 transitions. [2022-03-03 17:04:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:15,780 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:15,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:15,792 INFO L225 Difference]: With dead ends: 9112 [2022-03-03 17:04:15,792 INFO L226 Difference]: Without dead ends: 8633 [2022-03-03 17:04:15,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=317, Invalid=1015, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:15,793 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 246 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:15,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2101 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:15,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-03-03 17:04:15,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-03-03 17:04:15,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:15,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-03 17:04:15,901 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-03 17:04:15,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:15,901 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-03 17:04:15,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:15,901 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-03 17:04:15,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:15,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:15,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:15,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable403 [2022-03-03 17:04:15,909 INFO L402 AbstractCegarLoop]: === Iteration 405 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:15,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:15,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2041569530, now seen corresponding path program 103 times [2022-03-03 17:04:15,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:15,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679501436] [2022-03-03 17:04:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:16,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:16,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679501436] [2022-03-03 17:04:16,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679501436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:16,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:16,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:16,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767142981] [2022-03-03 17:04:16,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:16,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:16,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:16,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:16,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:16,020 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:16,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:16,441 INFO L93 Difference]: Finished difference Result 9070 states and 23943 transitions. [2022-03-03 17:04:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:16,441 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:16,452 INFO L225 Difference]: With dead ends: 9070 [2022-03-03 17:04:16,452 INFO L226 Difference]: Without dead ends: 8590 [2022-03-03 17:04:16,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:16,453 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 231 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:16,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2080 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:16,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2022-03-03 17:04:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 7694. [2022-03-03 17:04:16,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:16,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-03 17:04:16,570 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-03 17:04:16,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:16,570 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-03 17:04:16,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:16,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-03 17:04:16,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:16,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:16,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:16,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable404 [2022-03-03 17:04:16,579 INFO L402 AbstractCegarLoop]: === Iteration 406 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:16,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:16,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1132340426, now seen corresponding path program 104 times [2022-03-03 17:04:16,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:16,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457981690] [2022-03-03 17:04:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:16,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:16,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:16,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457981690] [2022-03-03 17:04:16,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457981690] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:16,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:16,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:16,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909054411] [2022-03-03 17:04:16,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:16,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:16,688 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:16,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:16,688 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:17,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:17,221 INFO L93 Difference]: Finished difference Result 9178 states and 24220 transitions. [2022-03-03 17:04:17,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:04:17,222 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:17,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:17,235 INFO L225 Difference]: With dead ends: 9178 [2022-03-03 17:04:17,235 INFO L226 Difference]: Without dead ends: 8658 [2022-03-03 17:04:17,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:04:17,235 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 300 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:17,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2703 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:17,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-03-03 17:04:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7690. [2022-03-03 17:04:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-03 17:04:17,347 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-03 17:04:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:17,347 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-03 17:04:17,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-03 17:04:17,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:17,356 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:17,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:17,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable405 [2022-03-03 17:04:17,357 INFO L402 AbstractCegarLoop]: === Iteration 407 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:17,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:17,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1204970150, now seen corresponding path program 105 times [2022-03-03 17:04:17,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:17,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002828034] [2022-03-03 17:04:17,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:17,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:17,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:17,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:17,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002828034] [2022-03-03 17:04:17,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002828034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:17,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:17,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:17,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178669199] [2022-03-03 17:04:17,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:17,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:17,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:17,504 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:18,085 INFO L93 Difference]: Finished difference Result 9276 states and 24476 transitions. [2022-03-03 17:04:18,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:18,086 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:18,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:18,097 INFO L225 Difference]: With dead ends: 9276 [2022-03-03 17:04:18,097 INFO L226 Difference]: Without dead ends: 8754 [2022-03-03 17:04:18,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1502, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:04:18,097 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 293 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:18,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2489 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:18,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8754 states. [2022-03-03 17:04:18,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8754 to 7694. [2022-03-03 17:04:18,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-03 17:04:18,196 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-03 17:04:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:18,196 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-03 17:04:18,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,196 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-03 17:04:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:18,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:18,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:18,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable406 [2022-03-03 17:04:18,204 INFO L402 AbstractCegarLoop]: === Iteration 408 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:18,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:18,205 INFO L85 PathProgramCache]: Analyzing trace with hash -352945200, now seen corresponding path program 106 times [2022-03-03 17:04:18,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:18,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773380311] [2022-03-03 17:04:18,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:18,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:18,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:18,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:18,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773380311] [2022-03-03 17:04:18,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773380311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:18,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:18,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:18,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229148235] [2022-03-03 17:04:18,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:18,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:18,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:18,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:18,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:18,312 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:18,741 INFO L93 Difference]: Finished difference Result 9112 states and 24046 transitions. [2022-03-03 17:04:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:18,742 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:18,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:18,754 INFO L225 Difference]: With dead ends: 9112 [2022-03-03 17:04:18,754 INFO L226 Difference]: Without dead ends: 8633 [2022-03-03 17:04:18,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=335, Invalid=1071, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:18,754 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 229 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:18,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2838 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:18,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8633 states. [2022-03-03 17:04:18,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8633 to 7698. [2022-03-03 17:04:18,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-03 17:04:18,856 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-03 17:04:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:18,856 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-03 17:04:18,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,857 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-03 17:04:18,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:18,864 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:18,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:18,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable407 [2022-03-03 17:04:18,865 INFO L402 AbstractCegarLoop]: === Iteration 409 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1274577918, now seen corresponding path program 107 times [2022-03-03 17:04:18,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:18,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218828158] [2022-03-03 17:04:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:18,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:18,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218828158] [2022-03-03 17:04:18,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218828158] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:18,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:18,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:18,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726559525] [2022-03-03 17:04:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:18,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:18,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:18,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:18,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:18,971 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:19,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:19,357 INFO L93 Difference]: Finished difference Result 9046 states and 23869 transitions. [2022-03-03 17:04:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:19,358 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:19,368 INFO L225 Difference]: With dead ends: 9046 [2022-03-03 17:04:19,368 INFO L226 Difference]: Without dead ends: 8558 [2022-03-03 17:04:19,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:19,369 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 211 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:19,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 2232 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:19,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8558 states. [2022-03-03 17:04:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8558 to 7686. [2022-03-03 17:04:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:19,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-03-03 17:04:19,462 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-03-03 17:04:19,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:19,462 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-03-03 17:04:19,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:19,462 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-03-03 17:04:19,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:19,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:19,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:19,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable408 [2022-03-03 17:04:19,470 INFO L402 AbstractCegarLoop]: === Iteration 410 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:19,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:19,470 INFO L85 PathProgramCache]: Analyzing trace with hash -7766182, now seen corresponding path program 108 times [2022-03-03 17:04:19,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:19,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987695182] [2022-03-03 17:04:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:19,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:19,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:19,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987695182] [2022-03-03 17:04:19,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987695182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:19,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:19,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:19,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863208004] [2022-03-03 17:04:19,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:19,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:19,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:19,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:19,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:19,577 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:20,237 INFO L93 Difference]: Finished difference Result 9297 states and 24515 transitions. [2022-03-03 17:04:20,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:04:20,238 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:20,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:20,250 INFO L225 Difference]: With dead ends: 9297 [2022-03-03 17:04:20,250 INFO L226 Difference]: Without dead ends: 8732 [2022-03-03 17:04:20,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=658, Invalid=1994, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:04:20,251 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 362 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 2243 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:20,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 2243 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:20,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8732 states. [2022-03-03 17:04:20,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8732 to 7690. [2022-03-03 17:04:20,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-03-03 17:04:20,366 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-03-03 17:04:20,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:20,366 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-03-03 17:04:20,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:20,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-03-03 17:04:20,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:20,376 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:20,376 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:20,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable409 [2022-03-03 17:04:20,376 INFO L402 AbstractCegarLoop]: === Iteration 411 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:20,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash 856664880, now seen corresponding path program 109 times [2022-03-03 17:04:20,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:20,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30905580] [2022-03-03 17:04:20,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:20,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:20,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:20,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30905580] [2022-03-03 17:04:20,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30905580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:20,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:20,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:20,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119847641] [2022-03-03 17:04:20,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:20,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:20,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:20,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:20,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:20,486 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:21,088 INFO L93 Difference]: Finished difference Result 9180 states and 24208 transitions. [2022-03-03 17:04:21,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:21,088 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:21,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:21,101 INFO L225 Difference]: With dead ends: 9180 [2022-03-03 17:04:21,102 INFO L226 Difference]: Without dead ends: 8658 [2022-03-03 17:04:21,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:21,102 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 299 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:21,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2409 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8658 states. [2022-03-03 17:04:21,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8658 to 7694. [2022-03-03 17:04:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-03-03 17:04:21,245 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-03-03 17:04:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:21,245 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-03-03 17:04:21,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-03-03 17:04:21,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:21,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:21,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:21,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable410 [2022-03-03 17:04:21,255 INFO L402 AbstractCegarLoop]: === Iteration 412 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:21,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:21,256 INFO L85 PathProgramCache]: Analyzing trace with hash -701250470, now seen corresponding path program 110 times [2022-03-03 17:04:21,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:21,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334797751] [2022-03-03 17:04:21,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:21,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:21,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:21,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334797751] [2022-03-03 17:04:21,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334797751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:21,370 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:21,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:21,370 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901823096] [2022-03-03 17:04:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:21,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:21,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:21,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:21,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:21,370 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:21,791 INFO L93 Difference]: Finished difference Result 9032 states and 23822 transitions. [2022-03-03 17:04:21,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:21,792 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:21,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:21,805 INFO L225 Difference]: With dead ends: 9032 [2022-03-03 17:04:21,805 INFO L226 Difference]: Without dead ends: 8553 [2022-03-03 17:04:21,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:21,806 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 226 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:21,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2252 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:21,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2022-03-03 17:04:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 7698. [2022-03-03 17:04:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-03-03 17:04:21,937 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-03-03 17:04:21,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:21,937 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-03-03 17:04:21,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,937 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-03-03 17:04:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:21,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:21,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:21,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable411 [2022-03-03 17:04:21,948 INFO L402 AbstractCegarLoop]: === Iteration 413 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:21,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:21,948 INFO L85 PathProgramCache]: Analyzing trace with hash 926272648, now seen corresponding path program 111 times [2022-03-03 17:04:21,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:21,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015670633] [2022-03-03 17:04:21,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:21,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:22,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:22,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:22,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015670633] [2022-03-03 17:04:22,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015670633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:22,058 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:22,058 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:22,058 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672942503] [2022-03-03 17:04:22,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:22,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:22,059 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:22,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:22,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:22,059 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:22,449 INFO L93 Difference]: Finished difference Result 8934 states and 23557 transitions. [2022-03-03 17:04:22,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:04:22,449 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:22,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:22,460 INFO L225 Difference]: With dead ends: 8934 [2022-03-03 17:04:22,460 INFO L226 Difference]: Without dead ends: 8438 [2022-03-03 17:04:22,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=961, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:22,460 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 200 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2774 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:22,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2774 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:22,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8438 states. [2022-03-03 17:04:22,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8438 to 7678. [2022-03-03 17:04:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 7677 states have (on average 2.6428292301680343) internal successors, (20289), 7677 states have internal predecessors, (20289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 20289 transitions. [2022-03-03 17:04:22,561 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 20289 transitions. Word has length 109 [2022-03-03 17:04:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:22,561 INFO L470 AbstractCegarLoop]: Abstraction has 7678 states and 20289 transitions. [2022-03-03 17:04:22,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 20289 transitions. [2022-03-03 17:04:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:22,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:22,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:22,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable412 [2022-03-03 17:04:22,570 INFO L402 AbstractCegarLoop]: === Iteration 414 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:22,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:22,570 INFO L85 PathProgramCache]: Analyzing trace with hash -477638808, now seen corresponding path program 112 times [2022-03-03 17:04:22,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:22,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913641869] [2022-03-03 17:04:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:22,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:22,690 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:22,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913641869] [2022-03-03 17:04:22,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913641869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:22,690 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:22,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:22,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330942891] [2022-03-03 17:04:22,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:22,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:22,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:22,691 INFO L87 Difference]: Start difference. First operand 7678 states and 20289 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:23,138 INFO L93 Difference]: Finished difference Result 8968 states and 23658 transitions. [2022-03-03 17:04:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:23,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:23,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:23,150 INFO L225 Difference]: With dead ends: 8968 [2022-03-03 17:04:23,151 INFO L226 Difference]: Without dead ends: 8489 [2022-03-03 17:04:23,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:23,151 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 236 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:23,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2790 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:23,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8489 states. [2022-03-03 17:04:23,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8489 to 7698. [2022-03-03 17:04:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6425880213070028) internal successors, (20340), 7697 states have internal predecessors, (20340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20340 transitions. [2022-03-03 17:04:23,266 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20340 transitions. Word has length 109 [2022-03-03 17:04:23,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:23,266 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20340 transitions. [2022-03-03 17:04:23,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20340 transitions. [2022-03-03 17:04:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:23,275 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:23,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:23,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable413 [2022-03-03 17:04:23,275 INFO L402 AbstractCegarLoop]: === Iteration 415 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:23,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1149884310, now seen corresponding path program 113 times [2022-03-03 17:04:23,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:23,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330437078] [2022-03-03 17:04:23,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:23,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:23,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:23,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330437078] [2022-03-03 17:04:23,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330437078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:23,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:23,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:23,387 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569545394] [2022-03-03 17:04:23,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:23,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:23,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:23,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:23,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:23,388 INFO L87 Difference]: Start difference. First operand 7698 states and 20340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:23,806 INFO L93 Difference]: Finished difference Result 8926 states and 23547 transitions. [2022-03-03 17:04:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:23,806 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:23,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:23,819 INFO L225 Difference]: With dead ends: 8926 [2022-03-03 17:04:23,819 INFO L226 Difference]: Without dead ends: 8446 [2022-03-03 17:04:23,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:23,820 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 227 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2319 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:23,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2319 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:23,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8446 states. [2022-03-03 17:04:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 7694. [2022-03-03 17:04:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6425321721045107) internal successors, (20329), 7693 states have internal predecessors, (20329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20329 transitions. [2022-03-03 17:04:23,947 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20329 transitions. Word has length 109 [2022-03-03 17:04:23,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:23,947 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20329 transitions. [2022-03-03 17:04:23,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20329 transitions. [2022-03-03 17:04:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:23,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:23,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:23,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable414 [2022-03-03 17:04:23,957 INFO L402 AbstractCegarLoop]: === Iteration 416 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:23,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:23,958 INFO L85 PathProgramCache]: Analyzing trace with hash 28826970, now seen corresponding path program 114 times [2022-03-03 17:04:23,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:23,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610745344] [2022-03-03 17:04:23,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:23,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:24,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:24,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610745344] [2022-03-03 17:04:24,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610745344] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:24,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:24,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:24,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066353295] [2022-03-03 17:04:24,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:24,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:24,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:24,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:24,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:24,067 INFO L87 Difference]: Start difference. First operand 7694 states and 20329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:24,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:24,565 INFO L93 Difference]: Finished difference Result 9014 states and 23769 transitions. [2022-03-03 17:04:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:04:24,565 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:24,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:24,578 INFO L225 Difference]: With dead ends: 9014 [2022-03-03 17:04:24,578 INFO L226 Difference]: Without dead ends: 8494 [2022-03-03 17:04:24,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:04:24,579 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 293 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 2517 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:24,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 2517 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-03-03 17:04:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 7690. [2022-03-03 17:04:24,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6424762647938613) internal successors, (20318), 7689 states have internal predecessors, (20318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:24,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20318 transitions. [2022-03-03 17:04:24,698 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20318 transitions. Word has length 109 [2022-03-03 17:04:24,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:24,698 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20318 transitions. [2022-03-03 17:04:24,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20318 transitions. [2022-03-03 17:04:24,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:24,708 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:24,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:24,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable415 [2022-03-03 17:04:24,708 INFO L402 AbstractCegarLoop]: === Iteration 417 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:24,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:24,708 INFO L85 PathProgramCache]: Analyzing trace with hash 101456694, now seen corresponding path program 115 times [2022-03-03 17:04:24,709 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:24,709 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585510982] [2022-03-03 17:04:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:24,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:24,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585510982] [2022-03-03 17:04:24,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585510982] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:24,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:24,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:24,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796907012] [2022-03-03 17:04:24,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:24,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:24,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:24,819 INFO L87 Difference]: Start difference. First operand 7690 states and 20318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:25,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:25,382 INFO L93 Difference]: Finished difference Result 9128 states and 24069 transitions. [2022-03-03 17:04:25,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:25,382 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:25,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:25,396 INFO L225 Difference]: With dead ends: 9128 [2022-03-03 17:04:25,396 INFO L226 Difference]: Without dead ends: 8606 [2022-03-03 17:04:25,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:04:25,396 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 335 mSDsluCounter, 2478 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:25,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [335 Valid, 2661 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:25,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8606 states. [2022-03-03 17:04:25,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8606 to 7694. [2022-03-03 17:04:25,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.642012218900299) internal successors, (20325), 7693 states have internal predecessors, (20325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:25,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20325 transitions. [2022-03-03 17:04:25,515 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20325 transitions. Word has length 109 [2022-03-03 17:04:25,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:25,515 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20325 transitions. [2022-03-03 17:04:25,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:25,516 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20325 transitions. [2022-03-03 17:04:25,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:25,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:25,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:25,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable416 [2022-03-03 17:04:25,527 INFO L402 AbstractCegarLoop]: === Iteration 418 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:25,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1456458656, now seen corresponding path program 116 times [2022-03-03 17:04:25,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:25,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431365221] [2022-03-03 17:04:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:25,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:25,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:25,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431365221] [2022-03-03 17:04:25,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431365221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:25,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:25,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:25,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982893632] [2022-03-03 17:04:25,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:25,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:25,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:25,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:25,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:25,635 INFO L87 Difference]: Start difference. First operand 7694 states and 20325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:26,089 INFO L93 Difference]: Finished difference Result 8964 states and 23639 transitions. [2022-03-03 17:04:26,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:26,090 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:26,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:26,102 INFO L225 Difference]: With dead ends: 8964 [2022-03-03 17:04:26,103 INFO L226 Difference]: Without dead ends: 8485 [2022-03-03 17:04:26,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:04:26,103 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 262 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:26,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2490 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8485 states. [2022-03-03 17:04:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8485 to 7698. [2022-03-03 17:04:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6415486553202547) internal successors, (20332), 7697 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20332 transitions. [2022-03-03 17:04:26,228 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20332 transitions. Word has length 109 [2022-03-03 17:04:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:26,229 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20332 transitions. [2022-03-03 17:04:26,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20332 transitions. [2022-03-03 17:04:26,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:26,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:26,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:26,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable417 [2022-03-03 17:04:26,242 INFO L402 AbstractCegarLoop]: === Iteration 419 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:26,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:26,242 INFO L85 PathProgramCache]: Analyzing trace with hash 171064462, now seen corresponding path program 117 times [2022-03-03 17:04:26,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:26,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418804927] [2022-03-03 17:04:26,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:26,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:26,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:26,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418804927] [2022-03-03 17:04:26,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418804927] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:26,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:26,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:26,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557134204] [2022-03-03 17:04:26,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:26,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:26,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:26,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:26,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:26,361 INFO L87 Difference]: Start difference. First operand 7698 states and 20332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:26,793 INFO L93 Difference]: Finished difference Result 8898 states and 23462 transitions. [2022-03-03 17:04:26,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:26,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:26,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:26,805 INFO L225 Difference]: With dead ends: 8898 [2022-03-03 17:04:26,805 INFO L226 Difference]: Without dead ends: 8410 [2022-03-03 17:04:26,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=942, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:26,806 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 242 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:26,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 2538 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-03-03 17:04:26,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7686. [2022-03-03 17:04:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.64242029928432) internal successors, (20307), 7685 states have internal predecessors, (20307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20307 transitions. [2022-03-03 17:04:26,916 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20307 transitions. Word has length 109 [2022-03-03 17:04:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:26,916 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20307 transitions. [2022-03-03 17:04:26,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20307 transitions. [2022-03-03 17:04:26,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:26,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:26,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:26,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable418 [2022-03-03 17:04:26,932 INFO L402 AbstractCegarLoop]: === Iteration 420 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:26,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:26,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1111279638, now seen corresponding path program 118 times [2022-03-03 17:04:26,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:26,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592255710] [2022-03-03 17:04:26,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:26,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:27,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:27,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592255710] [2022-03-03 17:04:27,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592255710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:27,045 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:27,045 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:27,045 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760402753] [2022-03-03 17:04:27,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:27,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:27,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:27,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:27,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:27,046 INFO L87 Difference]: Start difference. First operand 7686 states and 20307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:27,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:27,764 INFO L93 Difference]: Finished difference Result 9261 states and 24416 transitions. [2022-03-03 17:04:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:04:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:27,775 INFO L225 Difference]: With dead ends: 9261 [2022-03-03 17:04:27,775 INFO L226 Difference]: Without dead ends: 8696 [2022-03-03 17:04:27,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=665, Invalid=2091, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:04:27,776 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 409 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:27,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2578 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:27,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2022-03-03 17:04:27,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 7690. [2022-03-03 17:04:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.641956041097672) internal successors, (20314), 7689 states have internal predecessors, (20314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20314 transitions. [2022-03-03 17:04:27,889 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20314 transitions. Word has length 109 [2022-03-03 17:04:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:27,889 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20314 transitions. [2022-03-03 17:04:27,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20314 transitions. [2022-03-03 17:04:27,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:27,898 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:27,898 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:27,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable419 [2022-03-03 17:04:27,898 INFO L402 AbstractCegarLoop]: === Iteration 421 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:27,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:27,898 INFO L85 PathProgramCache]: Analyzing trace with hash -246848576, now seen corresponding path program 119 times [2022-03-03 17:04:27,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:27,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393785669] [2022-03-03 17:04:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:27,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:28,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:28,011 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:28,011 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393785669] [2022-03-03 17:04:28,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393785669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:28,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:28,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:28,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839820983] [2022-03-03 17:04:28,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:28,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:28,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:28,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:28,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:28,012 INFO L87 Difference]: Start difference. First operand 7690 states and 20314 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:28,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:28,576 INFO L93 Difference]: Finished difference Result 9136 states and 24087 transitions. [2022-03-03 17:04:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:28,576 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:28,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:28,590 INFO L225 Difference]: With dead ends: 9136 [2022-03-03 17:04:28,590 INFO L226 Difference]: Without dead ends: 8614 [2022-03-03 17:04:28,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:28,590 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 341 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:28,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 2576 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:28,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2022-03-03 17:04:28,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 7694. [2022-03-03 17:04:28,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6414922656960873) internal successors, (20321), 7693 states have internal predecessors, (20321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:28,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20321 transitions. [2022-03-03 17:04:28,711 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20321 transitions. Word has length 109 [2022-03-03 17:04:28,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:28,711 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20321 transitions. [2022-03-03 17:04:28,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:28,711 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20321 transitions. [2022-03-03 17:04:28,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:28,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:28,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:28,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable420 [2022-03-03 17:04:28,722 INFO L402 AbstractCegarLoop]: === Iteration 422 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:28,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1804763926, now seen corresponding path program 120 times [2022-03-03 17:04:28,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:28,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101638148] [2022-03-03 17:04:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:28,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:28,831 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:28,831 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101638148] [2022-03-03 17:04:28,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101638148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:28,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:28,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:28,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653611845] [2022-03-03 17:04:28,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:28,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:28,832 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:28,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:28,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:28,832 INFO L87 Difference]: Start difference. First operand 7694 states and 20321 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:29,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:29,267 INFO L93 Difference]: Finished difference Result 8972 states and 23657 transitions. [2022-03-03 17:04:29,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:29,268 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:29,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:29,279 INFO L225 Difference]: With dead ends: 8972 [2022-03-03 17:04:29,279 INFO L226 Difference]: Without dead ends: 8493 [2022-03-03 17:04:29,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1080, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:29,280 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 270 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:29,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2323 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:29,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-03-03 17:04:29,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 7698. [2022-03-03 17:04:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6410289723268807) internal successors, (20328), 7697 states have internal predecessors, (20328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:29,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20328 transitions. [2022-03-03 17:04:29,386 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20328 transitions. Word has length 109 [2022-03-03 17:04:29,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:29,386 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20328 transitions. [2022-03-03 17:04:29,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:29,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20328 transitions. [2022-03-03 17:04:29,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:29,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:29,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:29,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable421 [2022-03-03 17:04:29,395 INFO L402 AbstractCegarLoop]: === Iteration 423 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:29,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:29,395 INFO L85 PathProgramCache]: Analyzing trace with hash -177240808, now seen corresponding path program 121 times [2022-03-03 17:04:29,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:29,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335927599] [2022-03-03 17:04:29,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:29,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:29,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:29,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335927599] [2022-03-03 17:04:29,500 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335927599] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:29,500 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:29,500 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:29,500 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766688012] [2022-03-03 17:04:29,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:29,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:29,501 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:29,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:29,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:29,501 INFO L87 Difference]: Start difference. First operand 7698 states and 20328 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:29,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:29,875 INFO L93 Difference]: Finished difference Result 8898 states and 23458 transitions. [2022-03-03 17:04:29,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:04:29,875 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:29,888 INFO L225 Difference]: With dead ends: 8898 [2022-03-03 17:04:29,888 INFO L226 Difference]: Without dead ends: 8406 [2022-03-03 17:04:29,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:29,889 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 249 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:29,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2252 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:29,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8406 states. [2022-03-03 17:04:29,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8406 to 7682. [2022-03-03 17:04:29,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 7681 states have (on average 2.642364275484963) internal successors, (20296), 7681 states have internal predecessors, (20296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:30,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 20296 transitions. [2022-03-03 17:04:30,010 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 20296 transitions. Word has length 109 [2022-03-03 17:04:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:30,010 INFO L470 AbstractCegarLoop]: Abstraction has 7682 states and 20296 transitions. [2022-03-03 17:04:30,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 20296 transitions. [2022-03-03 17:04:30,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:30,019 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:30,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:30,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable422 [2022-03-03 17:04:30,019 INFO L402 AbstractCegarLoop]: === Iteration 424 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:30,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash -758803116, now seen corresponding path program 122 times [2022-03-03 17:04:30,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:30,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698684567] [2022-03-03 17:04:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:30,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:30,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:30,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698684567] [2022-03-03 17:04:30,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698684567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:30,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:30,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:30,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435721550] [2022-03-03 17:04:30,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:30,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:30,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:30,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:30,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:30,124 INFO L87 Difference]: Start difference. First operand 7682 states and 20296 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:30,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:30,795 INFO L93 Difference]: Finished difference Result 9142 states and 24070 transitions. [2022-03-03 17:04:30,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:04:30,795 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:30,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:30,808 INFO L225 Difference]: With dead ends: 9142 [2022-03-03 17:04:30,808 INFO L226 Difference]: Without dead ends: 8534 [2022-03-03 17:04:30,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:04:30,809 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 474 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:30,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 2785 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:30,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8534 states. [2022-03-03 17:04:30,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8534 to 7686. [2022-03-03 17:04:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7686 states, 7685 states have (on average 2.6418998048145736) internal successors, (20303), 7685 states have internal predecessors, (20303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:30,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7686 states to 7686 states and 20303 transitions. [2022-03-03 17:04:30,927 INFO L78 Accepts]: Start accepts. Automaton has 7686 states and 20303 transitions. Word has length 109 [2022-03-03 17:04:30,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:30,927 INFO L470 AbstractCegarLoop]: Abstraction has 7686 states and 20303 transitions. [2022-03-03 17:04:30,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:30,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7686 states and 20303 transitions. [2022-03-03 17:04:30,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:30,937 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:30,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:30,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable423 [2022-03-03 17:04:30,937 INFO L402 AbstractCegarLoop]: === Iteration 425 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:30,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:30,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1265692440, now seen corresponding path program 123 times [2022-03-03 17:04:30,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:30,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577842722] [2022-03-03 17:04:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:30,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:31,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:31,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577842722] [2022-03-03 17:04:31,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577842722] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:31,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:31,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:31,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145296201] [2022-03-03 17:04:31,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:31,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:31,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:31,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:31,047 INFO L87 Difference]: Start difference. First operand 7686 states and 20303 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:31,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:31,705 INFO L93 Difference]: Finished difference Result 9037 states and 23796 transitions. [2022-03-03 17:04:31,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:04:31,705 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:31,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:31,718 INFO L225 Difference]: With dead ends: 9037 [2022-03-03 17:04:31,718 INFO L226 Difference]: Without dead ends: 8472 [2022-03-03 17:04:31,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 811 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:04:31,719 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 421 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:31,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 2647 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8472 states. [2022-03-03 17:04:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8472 to 7690. [2022-03-03 17:04:31,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7690 states, 7689 states have (on average 2.6414358174014825) internal successors, (20310), 7689 states have internal predecessors, (20310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:31,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7690 states to 7690 states and 20310 transitions. [2022-03-03 17:04:31,839 INFO L78 Accepts]: Start accepts. Automaton has 7690 states and 20310 transitions. Word has length 109 [2022-03-03 17:04:31,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:31,839 INFO L470 AbstractCegarLoop]: Abstraction has 7690 states and 20310 transitions. [2022-03-03 17:04:31,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:31,839 INFO L276 IsEmpty]: Start isEmpty. Operand 7690 states and 20310 transitions. [2022-03-03 17:04:31,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:31,848 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:31,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:31,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable424 [2022-03-03 17:04:31,848 INFO L402 AbstractCegarLoop]: === Iteration 426 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:31,849 INFO L85 PathProgramCache]: Analyzing trace with hash 2130123502, now seen corresponding path program 124 times [2022-03-03 17:04:31,849 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:31,849 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116704730] [2022-03-03 17:04:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:31,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:31,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:31,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116704730] [2022-03-03 17:04:31,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116704730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:31,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:31,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:31,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389381150] [2022-03-03 17:04:31,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:31,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:31,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:31,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:31,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:31,962 INFO L87 Difference]: Start difference. First operand 7690 states and 20310 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:32,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:32,517 INFO L93 Difference]: Finished difference Result 8932 states and 23522 transitions. [2022-03-03 17:04:32,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:32,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:32,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:32,529 INFO L225 Difference]: With dead ends: 8932 [2022-03-03 17:04:32,529 INFO L226 Difference]: Without dead ends: 8410 [2022-03-03 17:04:32,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:32,529 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 353 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:32,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 1984 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:32,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2022-03-03 17:04:32,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 7694. [2022-03-03 17:04:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 7693 states have (on average 2.6409723124918756) internal successors, (20317), 7693 states have internal predecessors, (20317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 20317 transitions. [2022-03-03 17:04:32,633 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 20317 transitions. Word has length 109 [2022-03-03 17:04:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:32,633 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 20317 transitions. [2022-03-03 17:04:32,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 20317 transitions. [2022-03-03 17:04:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:32,642 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:32,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:32,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable425 [2022-03-03 17:04:32,642 INFO L402 AbstractCegarLoop]: === Iteration 427 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 572208152, now seen corresponding path program 125 times [2022-03-03 17:04:32,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:32,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522113044] [2022-03-03 17:04:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:32,744 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:32,744 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522113044] [2022-03-03 17:04:32,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522113044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:32,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:32,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:32,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750204458] [2022-03-03 17:04:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:32,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:32,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:32,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:32,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:32,745 INFO L87 Difference]: Start difference. First operand 7694 states and 20317 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:33,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:33,149 INFO L93 Difference]: Finished difference Result 8808 states and 23202 transitions. [2022-03-03 17:04:33,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:33,149 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:33,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:33,161 INFO L225 Difference]: With dead ends: 8808 [2022-03-03 17:04:33,161 INFO L226 Difference]: Without dead ends: 8329 [2022-03-03 17:04:33,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:04:33,161 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 288 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:33,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 2296 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:33,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2022-03-03 17:04:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 7698. [2022-03-03 17:04:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7697 states have (on average 2.6405092893335067) internal successors, (20324), 7697 states have internal predecessors, (20324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 20324 transitions. [2022-03-03 17:04:33,261 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 20324 transitions. Word has length 109 [2022-03-03 17:04:33,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:33,261 INFO L470 AbstractCegarLoop]: Abstraction has 7698 states and 20324 transitions. [2022-03-03 17:04:33,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 20324 transitions. [2022-03-03 17:04:33,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:33,269 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:33,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:33,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable426 [2022-03-03 17:04:33,269 INFO L402 AbstractCegarLoop]: === Iteration 428 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2095236026, now seen corresponding path program 126 times [2022-03-03 17:04:33,270 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:33,270 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127207743] [2022-03-03 17:04:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:33,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:33,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:33,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127207743] [2022-03-03 17:04:33,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127207743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:33,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:33,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:33,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21527970] [2022-03-03 17:04:33,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:33,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:33,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:33,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:33,394 INFO L87 Difference]: Start difference. First operand 7698 states and 20324 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:33,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:33,744 INFO L93 Difference]: Finished difference Result 8646 states and 22761 transitions. [2022-03-03 17:04:33,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:04:33,745 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:33,754 INFO L225 Difference]: With dead ends: 8646 [2022-03-03 17:04:33,755 INFO L226 Difference]: Without dead ends: 8122 [2022-03-03 17:04:33,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 17:04:33,755 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 219 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:33,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2680 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8122 states. [2022-03-03 17:04:33,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8122 to 7650. [2022-03-03 17:04:33,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7650 states, 7649 states have (on average 2.6434828082102237) internal successors, (20220), 7649 states have internal predecessors, (20220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 20220 transitions. [2022-03-03 17:04:33,843 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 20220 transitions. Word has length 109 [2022-03-03 17:04:33,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:33,843 INFO L470 AbstractCegarLoop]: Abstraction has 7650 states and 20220 transitions. [2022-03-03 17:04:33,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:33,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 20220 transitions. [2022-03-03 17:04:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:33,850 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:33,850 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:33,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable427 [2022-03-03 17:04:33,850 INFO L402 AbstractCegarLoop]: === Iteration 429 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:33,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:33,850 INFO L85 PathProgramCache]: Analyzing trace with hash 533071862, now seen corresponding path program 127 times [2022-03-03 17:04:33,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:33,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448345460] [2022-03-03 17:04:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:33,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:33,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:33,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448345460] [2022-03-03 17:04:33,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448345460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:33,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:33,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:33,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006443094] [2022-03-03 17:04:33,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:33,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:33,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:33,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:33,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:33,946 INFO L87 Difference]: Start difference. First operand 7650 states and 20220 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:34,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:34,668 INFO L93 Difference]: Finished difference Result 9046 states and 23741 transitions. [2022-03-03 17:04:34,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-03 17:04:34,668 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:34,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:34,678 INFO L225 Difference]: With dead ends: 9046 [2022-03-03 17:04:34,678 INFO L226 Difference]: Without dead ends: 8163 [2022-03-03 17:04:34,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1234 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=999, Invalid=3291, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:04:34,679 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 618 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:34,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [618 Valid, 3418 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:34,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8163 states. [2022-03-03 17:04:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8163 to 7375. [2022-03-03 17:04:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7375 states, 7374 states have (on average 2.6471385950637374) internal successors, (19520), 7374 states have internal predecessors, (19520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7375 states to 7375 states and 19520 transitions. [2022-03-03 17:04:34,764 INFO L78 Accepts]: Start accepts. Automaton has 7375 states and 19520 transitions. Word has length 109 [2022-03-03 17:04:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:34,765 INFO L470 AbstractCegarLoop]: Abstraction has 7375 states and 19520 transitions. [2022-03-03 17:04:34,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 7375 states and 19520 transitions. [2022-03-03 17:04:34,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:34,772 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:34,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:34,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable428 [2022-03-03 17:04:34,772 INFO L402 AbstractCegarLoop]: === Iteration 430 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:34,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:34,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1937111454, now seen corresponding path program 128 times [2022-03-03 17:04:34,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:34,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068972182] [2022-03-03 17:04:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:34,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:34,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:34,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068972182] [2022-03-03 17:04:34,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068972182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:34,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:34,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:34,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657439649] [2022-03-03 17:04:34,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:34,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:34,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:34,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:34,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:34,875 INFO L87 Difference]: Start difference. First operand 7375 states and 19520 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:35,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:35,579 INFO L93 Difference]: Finished difference Result 8883 states and 23436 transitions. [2022-03-03 17:04:35,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-03-03 17:04:35,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:35,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:35,590 INFO L225 Difference]: With dead ends: 8883 [2022-03-03 17:04:35,591 INFO L226 Difference]: Without dead ends: 8275 [2022-03-03 17:04:35,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=850, Invalid=3056, Unknown=0, NotChecked=0, Total=3906 [2022-03-03 17:04:35,591 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 488 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:35,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 3170 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:35,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8275 states. [2022-03-03 17:04:35,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8275 to 7379. [2022-03-03 17:04:35,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7379 states, 7378 states have (on average 2.646652209270805) internal successors, (19527), 7378 states have internal predecessors, (19527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7379 states to 7379 states and 19527 transitions. [2022-03-03 17:04:35,687 INFO L78 Accepts]: Start accepts. Automaton has 7379 states and 19527 transitions. Word has length 109 [2022-03-03 17:04:35,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:35,687 INFO L470 AbstractCegarLoop]: Abstraction has 7379 states and 19527 transitions. [2022-03-03 17:04:35,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:35,687 INFO L276 IsEmpty]: Start isEmpty. Operand 7379 states and 19527 transitions. [2022-03-03 17:04:35,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:35,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:35,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:35,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable429 [2022-03-03 17:04:35,695 INFO L402 AbstractCegarLoop]: === Iteration 431 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:35,695 INFO L85 PathProgramCache]: Analyzing trace with hash -333360286, now seen corresponding path program 129 times [2022-03-03 17:04:35,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:35,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778227725] [2022-03-03 17:04:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:35,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:35,797 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:35,797 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778227725] [2022-03-03 17:04:35,797 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778227725] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:35,797 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:35,797 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:35,798 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006175074] [2022-03-03 17:04:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:35,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:35,798 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:35,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:35,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:35,798 INFO L87 Difference]: Start difference. First operand 7379 states and 19527 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:36,437 INFO L93 Difference]: Finished difference Result 8758 states and 23107 transitions. [2022-03-03 17:04:36,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:04:36,437 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:36,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:36,449 INFO L225 Difference]: With dead ends: 8758 [2022-03-03 17:04:36,449 INFO L226 Difference]: Without dead ends: 8193 [2022-03-03 17:04:36,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=620, Invalid=2242, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:04:36,449 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 383 mSDsluCounter, 2978 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:36,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 3196 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8193 states. [2022-03-03 17:04:36,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8193 to 7383. [2022-03-03 17:04:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7383 states, 7382 states have (on average 2.646166350582498) internal successors, (19534), 7382 states have internal predecessors, (19534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7383 states to 7383 states and 19534 transitions. [2022-03-03 17:04:36,560 INFO L78 Accepts]: Start accepts. Automaton has 7383 states and 19534 transitions. Word has length 109 [2022-03-03 17:04:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:36,560 INFO L470 AbstractCegarLoop]: Abstraction has 7383 states and 19534 transitions. [2022-03-03 17:04:36,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 7383 states and 19534 transitions. [2022-03-03 17:04:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:36,569 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:36,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:36,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable430 [2022-03-03 17:04:36,569 INFO L402 AbstractCegarLoop]: === Iteration 432 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:36,569 INFO L85 PathProgramCache]: Analyzing trace with hash 531070776, now seen corresponding path program 130 times [2022-03-03 17:04:36,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:36,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122549304] [2022-03-03 17:04:36,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:36,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:36,670 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:36,670 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122549304] [2022-03-03 17:04:36,670 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122549304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:36,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:36,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:36,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902610241] [2022-03-03 17:04:36,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:36,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:36,671 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:36,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:36,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:36,671 INFO L87 Difference]: Start difference. First operand 7383 states and 19534 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:37,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:37,136 INFO L93 Difference]: Finished difference Result 8633 states and 22778 transitions. [2022-03-03 17:04:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:37,137 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:37,148 INFO L225 Difference]: With dead ends: 8633 [2022-03-03 17:04:37,148 INFO L226 Difference]: Without dead ends: 8111 [2022-03-03 17:04:37,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1627, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:37,148 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 319 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:37,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 2095 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:37,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8111 states. [2022-03-03 17:04:37,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8111 to 7387. [2022-03-03 17:04:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 7386 states have (on average 2.6456810181424317) internal successors, (19541), 7386 states have internal predecessors, (19541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 19541 transitions. [2022-03-03 17:04:37,250 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 19541 transitions. Word has length 109 [2022-03-03 17:04:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:37,250 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 19541 transitions. [2022-03-03 17:04:37,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 19541 transitions. [2022-03-03 17:04:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:37,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:37,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:37,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable431 [2022-03-03 17:04:37,259 INFO L402 AbstractCegarLoop]: === Iteration 433 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:37,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:37,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1026844574, now seen corresponding path program 131 times [2022-03-03 17:04:37,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:37,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7548914] [2022-03-03 17:04:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:37,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:37,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:37,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7548914] [2022-03-03 17:04:37,365 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7548914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:37,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:37,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:37,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584297753] [2022-03-03 17:04:37,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:37,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:37,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:37,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:37,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:37,366 INFO L87 Difference]: Start difference. First operand 7387 states and 19541 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:37,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:37,748 INFO L93 Difference]: Finished difference Result 8469 states and 22348 transitions. [2022-03-03 17:04:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:37,748 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:37,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:37,759 INFO L225 Difference]: With dead ends: 8469 [2022-03-03 17:04:37,760 INFO L226 Difference]: Without dead ends: 7990 [2022-03-03 17:04:37,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:37,760 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 245 mSDsluCounter, 2053 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:37,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 2282 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:37,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7990 states. [2022-03-03 17:04:37,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7990 to 7391. [2022-03-03 17:04:37,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7391 states, 7390 states have (on average 2.6451962110960756) internal successors, (19548), 7390 states have internal predecessors, (19548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7391 states to 7391 states and 19548 transitions. [2022-03-03 17:04:37,860 INFO L78 Accepts]: Start accepts. Automaton has 7391 states and 19548 transitions. Word has length 109 [2022-03-03 17:04:37,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:37,860 INFO L470 AbstractCegarLoop]: Abstraction has 7391 states and 19548 transitions. [2022-03-03 17:04:37,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 7391 states and 19548 transitions. [2022-03-03 17:04:37,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:37,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:37,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:37,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable432 [2022-03-03 17:04:37,869 INFO L402 AbstractCegarLoop]: === Iteration 434 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:37,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:37,869 INFO L85 PathProgramCache]: Analyzing trace with hash 600678544, now seen corresponding path program 132 times [2022-03-03 17:04:37,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:37,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352727354] [2022-03-03 17:04:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:37,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:37,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:37,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:37,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352727354] [2022-03-03 17:04:37,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352727354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:37,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:37,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:37,972 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392417411] [2022-03-03 17:04:37,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:37,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:37,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:37,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:37,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:37,972 INFO L87 Difference]: Start difference. First operand 7391 states and 19548 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:38,349 INFO L93 Difference]: Finished difference Result 8387 states and 22127 transitions. [2022-03-03 17:04:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-03 17:04:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:38,359 INFO L225 Difference]: With dead ends: 8387 [2022-03-03 17:04:38,359 INFO L226 Difference]: Without dead ends: 7869 [2022-03-03 17:04:38,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:38,359 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 220 mSDsluCounter, 2897 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:38,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 3102 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:38,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-03-03 17:04:38,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7349. [2022-03-03 17:04:38,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7349 states, 7348 states have (on average 2.647387044093631) internal successors, (19453), 7348 states have internal predecessors, (19453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7349 states to 7349 states and 19453 transitions. [2022-03-03 17:04:38,452 INFO L78 Accepts]: Start accepts. Automaton has 7349 states and 19453 transitions. Word has length 109 [2022-03-03 17:04:38,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:38,453 INFO L470 AbstractCegarLoop]: Abstraction has 7349 states and 19453 transitions. [2022-03-03 17:04:38,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:38,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7349 states and 19453 transitions. [2022-03-03 17:04:38,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:38,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:38,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:38,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable433 [2022-03-03 17:04:38,461 INFO L402 AbstractCegarLoop]: === Iteration 435 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:38,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:38,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1160979608, now seen corresponding path program 133 times [2022-03-03 17:04:38,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:38,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156159809] [2022-03-03 17:04:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:38,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:38,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:38,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156159809] [2022-03-03 17:04:38,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156159809] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:38,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:38,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:38,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211467992] [2022-03-03 17:04:38,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:38,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:38,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:38,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:38,565 INFO L87 Difference]: Start difference. First operand 7349 states and 19453 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:38,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:38,932 INFO L93 Difference]: Finished difference Result 8579 states and 22667 transitions. [2022-03-03 17:04:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:38,932 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:38,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:38,943 INFO L225 Difference]: With dead ends: 8579 [2022-03-03 17:04:38,943 INFO L226 Difference]: Without dead ends: 8100 [2022-03-03 17:04:38,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=1020, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:38,944 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 246 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:38,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2205 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:38,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8100 states. [2022-03-03 17:04:39,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8100 to 7369. [2022-03-03 17:04:39,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6471226927252984) internal successors, (19504), 7368 states have internal predecessors, (19504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:39,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19504 transitions. [2022-03-03 17:04:39,039 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19504 transitions. Word has length 109 [2022-03-03 17:04:39,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:39,039 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19504 transitions. [2022-03-03 17:04:39,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:39,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19504 transitions. [2022-03-03 17:04:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:39,046 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:39,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:39,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434 [2022-03-03 17:04:39,047 INFO L402 AbstractCegarLoop]: === Iteration 436 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:39,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1506464570, now seen corresponding path program 134 times [2022-03-03 17:04:39,047 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:39,047 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126135512] [2022-03-03 17:04:39,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:39,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:39,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:39,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:39,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126135512] [2022-03-03 17:04:39,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126135512] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:39,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:39,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:39,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058963971] [2022-03-03 17:04:39,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:39,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:39,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:39,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:39,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:39,147 INFO L87 Difference]: Start difference. First operand 7369 states and 19504 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:39,620 INFO L93 Difference]: Finished difference Result 8537 states and 22556 transitions. [2022-03-03 17:04:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:39,620 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:39,631 INFO L225 Difference]: With dead ends: 8537 [2022-03-03 17:04:39,632 INFO L226 Difference]: Without dead ends: 8057 [2022-03-03 17:04:39,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=389, Invalid=1171, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 17:04:39,632 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 227 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:39,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2843 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:39,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8057 states. [2022-03-03 17:04:39,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8057 to 7365. [2022-03-03 17:04:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6470668115154807) internal successors, (19493), 7364 states have internal predecessors, (19493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19493 transitions. [2022-03-03 17:04:39,737 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19493 transitions. Word has length 109 [2022-03-03 17:04:39,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:39,737 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19493 transitions. [2022-03-03 17:04:39,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19493 transitions. [2022-03-03 17:04:39,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:39,745 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:39,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:39,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable435 [2022-03-03 17:04:39,745 INFO L402 AbstractCegarLoop]: === Iteration 437 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:39,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:39,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1667445386, now seen corresponding path program 135 times [2022-03-03 17:04:39,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:39,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661200766] [2022-03-03 17:04:39,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:39,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:39,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:39,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661200766] [2022-03-03 17:04:39,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661200766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:39,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:39,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:39,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600207266] [2022-03-03 17:04:39,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:39,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:39,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:39,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:39,844 INFO L87 Difference]: Start difference. First operand 7365 states and 19493 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:40,303 INFO L93 Difference]: Finished difference Result 8625 states and 22778 transitions. [2022-03-03 17:04:40,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-03 17:04:40,303 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:40,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:40,313 INFO L225 Difference]: With dead ends: 8625 [2022-03-03 17:04:40,314 INFO L226 Difference]: Without dead ends: 8105 [2022-03-03 17:04:40,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=500, Invalid=1392, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:04:40,314 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 306 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:40,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2083 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:40,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-03-03 17:04:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7361. [2022-03-03 17:04:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6470108695652175) internal successors, (19482), 7360 states have internal predecessors, (19482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:40,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19482 transitions. [2022-03-03 17:04:40,405 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19482 transitions. Word has length 109 [2022-03-03 17:04:40,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:40,405 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19482 transitions. [2022-03-03 17:04:40,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:40,405 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19482 transitions. [2022-03-03 17:04:40,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:40,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:40,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:40,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable436 [2022-03-03 17:04:40,412 INFO L402 AbstractCegarLoop]: === Iteration 438 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:40,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:40,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1740075110, now seen corresponding path program 136 times [2022-03-03 17:04:40,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:40,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833918231] [2022-03-03 17:04:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:40,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:40,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:40,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833918231] [2022-03-03 17:04:40,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833918231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:40,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:40,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:40,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383965946] [2022-03-03 17:04:40,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:40,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:40,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:40,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:40,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:40,537 INFO L87 Difference]: Start difference. First operand 7361 states and 19482 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:41,042 INFO L93 Difference]: Finished difference Result 8739 states and 23078 transitions. [2022-03-03 17:04:41,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:41,042 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:41,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:41,055 INFO L225 Difference]: With dead ends: 8739 [2022-03-03 17:04:41,055 INFO L226 Difference]: Without dead ends: 8217 [2022-03-03 17:04:41,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=450, Invalid=1530, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:04:41,056 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 333 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:41,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 2536 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:41,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2022-03-03 17:04:41,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 7365. [2022-03-03 17:04:41,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6465236284627918) internal successors, (19489), 7364 states have internal predecessors, (19489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19489 transitions. [2022-03-03 17:04:41,169 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19489 transitions. Word has length 109 [2022-03-03 17:04:41,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:41,169 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19489 transitions. [2022-03-03 17:04:41,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19489 transitions. [2022-03-03 17:04:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:41,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:41,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:41,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable437 [2022-03-03 17:04:41,178 INFO L402 AbstractCegarLoop]: === Iteration 439 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:41,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:41,178 INFO L85 PathProgramCache]: Analyzing trace with hash 182159760, now seen corresponding path program 137 times [2022-03-03 17:04:41,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:41,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027938238] [2022-03-03 17:04:41,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:41,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:41,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:41,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027938238] [2022-03-03 17:04:41,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027938238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:41,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:41,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:41,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162739273] [2022-03-03 17:04:41,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:41,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:41,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:41,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:41,281 INFO L87 Difference]: Start difference. First operand 7365 states and 19489 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:41,710 INFO L93 Difference]: Finished difference Result 8575 states and 22648 transitions. [2022-03-03 17:04:41,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:41,710 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:41,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:41,720 INFO L225 Difference]: With dead ends: 8575 [2022-03-03 17:04:41,720 INFO L226 Difference]: Without dead ends: 8096 [2022-03-03 17:04:41,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:41,721 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 253 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:41,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2873 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:41,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-03-03 17:04:41,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7369. [2022-03-03 17:04:41,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6460369163952224) internal successors, (19496), 7368 states have internal predecessors, (19496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19496 transitions. [2022-03-03 17:04:41,829 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19496 transitions. Word has length 109 [2022-03-03 17:04:41,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:41,830 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19496 transitions. [2022-03-03 17:04:41,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,830 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19496 transitions. [2022-03-03 17:04:41,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:41,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:41,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:41,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable438 [2022-03-03 17:04:41,839 INFO L402 AbstractCegarLoop]: === Iteration 440 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:41,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:41,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1809682878, now seen corresponding path program 138 times [2022-03-03 17:04:41,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:41,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684019500] [2022-03-03 17:04:41,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:41,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:41,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:41,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684019500] [2022-03-03 17:04:41,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684019500] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:41,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:41,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:41,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110795905] [2022-03-03 17:04:41,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:41,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:41,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:41,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:41,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:41,941 INFO L87 Difference]: Start difference. First operand 7369 states and 19496 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:42,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:42,373 INFO L93 Difference]: Finished difference Result 8509 states and 22471 transitions. [2022-03-03 17:04:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:42,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:42,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:42,384 INFO L225 Difference]: With dead ends: 8509 [2022-03-03 17:04:42,384 INFO L226 Difference]: Without dead ends: 8021 [2022-03-03 17:04:42,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:04:42,385 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 232 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:42,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 3027 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:42,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2022-03-03 17:04:42,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 7357. [2022-03-03 17:04:42,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.6469548667754212) internal successors, (19471), 7356 states have internal predecessors, (19471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:42,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19471 transitions. [2022-03-03 17:04:42,498 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19471 transitions. Word has length 109 [2022-03-03 17:04:42,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:42,499 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19471 transitions. [2022-03-03 17:04:42,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:42,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19471 transitions. [2022-03-03 17:04:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:42,509 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:42,509 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:42,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable439 [2022-03-03 17:04:42,509 INFO L402 AbstractCegarLoop]: === Iteration 441 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:42,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:42,509 INFO L85 PathProgramCache]: Analyzing trace with hash 527338778, now seen corresponding path program 139 times [2022-03-03 17:04:42,509 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:42,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76979662] [2022-03-03 17:04:42,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:42,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:42,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:42,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76979662] [2022-03-03 17:04:42,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76979662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:42,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:42,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:42,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111073634] [2022-03-03 17:04:42,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:42,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:42,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:42,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:42,616 INFO L87 Difference]: Start difference. First operand 7357 states and 19471 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:43,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:43,274 INFO L93 Difference]: Finished difference Result 8872 states and 23425 transitions. [2022-03-03 17:04:43,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:04:43,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:43,286 INFO L225 Difference]: With dead ends: 8872 [2022-03-03 17:04:43,286 INFO L226 Difference]: Without dead ends: 8307 [2022-03-03 17:04:43,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 761 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:04:43,287 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 401 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:43,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 2849 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:43,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2022-03-03 17:04:43,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 7361. [2022-03-03 17:04:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.646467391304348) internal successors, (19478), 7360 states have internal predecessors, (19478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19478 transitions. [2022-03-03 17:04:43,402 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19478 transitions. Word has length 109 [2022-03-03 17:04:43,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:43,402 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19478 transitions. [2022-03-03 17:04:43,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:43,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19478 transitions. [2022-03-03 17:04:43,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:43,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:43,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:43,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable440 [2022-03-03 17:04:43,411 INFO L402 AbstractCegarLoop]: === Iteration 442 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:43,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:43,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1391769840, now seen corresponding path program 140 times [2022-03-03 17:04:43,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:43,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128095899] [2022-03-03 17:04:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:43,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:43,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:43,519 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128095899] [2022-03-03 17:04:43,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128095899] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:43,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:43,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:43,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650903673] [2022-03-03 17:04:43,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:43,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:43,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:43,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:43,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:43,520 INFO L87 Difference]: Start difference. First operand 7361 states and 19478 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:44,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:44,046 INFO L93 Difference]: Finished difference Result 8747 states and 23096 transitions. [2022-03-03 17:04:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:44,046 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:44,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:44,056 INFO L225 Difference]: With dead ends: 8747 [2022-03-03 17:04:44,056 INFO L226 Difference]: Without dead ends: 8225 [2022-03-03 17:04:44,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=462, Invalid=1608, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:44,056 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 331 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:44,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2543 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8225 states. [2022-03-03 17:04:44,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8225 to 7365. [2022-03-03 17:04:44,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6459804454101032) internal successors, (19485), 7364 states have internal predecessors, (19485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19485 transitions. [2022-03-03 17:04:44,148 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19485 transitions. Word has length 109 [2022-03-03 17:04:44,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:44,149 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19485 transitions. [2022-03-03 17:04:44,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:44,149 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19485 transitions. [2022-03-03 17:04:44,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:44,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:44,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:44,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable441 [2022-03-03 17:04:44,156 INFO L402 AbstractCegarLoop]: === Iteration 443 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:44,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:44,157 INFO L85 PathProgramCache]: Analyzing trace with hash -166145510, now seen corresponding path program 141 times [2022-03-03 17:04:44,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:44,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35670032] [2022-03-03 17:04:44,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:44,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:44,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:44,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35670032] [2022-03-03 17:04:44,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35670032] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:44,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:44,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:44,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420026865] [2022-03-03 17:04:44,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:44,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:44,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:44,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:44,264 INFO L87 Difference]: Start difference. First operand 7365 states and 19485 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:44,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:44,665 INFO L93 Difference]: Finished difference Result 8583 states and 22666 transitions. [2022-03-03 17:04:44,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:44,665 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:44,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:44,676 INFO L225 Difference]: With dead ends: 8583 [2022-03-03 17:04:44,676 INFO L226 Difference]: Without dead ends: 8104 [2022-03-03 17:04:44,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1082, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:44,677 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 255 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:44,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2221 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:44,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8104 states. [2022-03-03 17:04:44,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8104 to 7369. [2022-03-03 17:04:44,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6454940282301846) internal successors, (19492), 7368 states have internal predecessors, (19492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:44,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19492 transitions. [2022-03-03 17:04:44,783 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19492 transitions. Word has length 109 [2022-03-03 17:04:44,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:44,783 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19492 transitions. [2022-03-03 17:04:44,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:44,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19492 transitions. [2022-03-03 17:04:44,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:44,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:44,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:44,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable442 [2022-03-03 17:04:44,792 INFO L402 AbstractCegarLoop]: === Iteration 444 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:44,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1461377608, now seen corresponding path program 142 times [2022-03-03 17:04:44,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:44,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454699145] [2022-03-03 17:04:44,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:44,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:44,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454699145] [2022-03-03 17:04:44,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454699145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:44,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:44,898 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:44,898 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335413303] [2022-03-03 17:04:44,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:44,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:44,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:44,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:44,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:44,898 INFO L87 Difference]: Start difference. First operand 7369 states and 19492 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:45,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:45,312 INFO L93 Difference]: Finished difference Result 8509 states and 22467 transitions. [2022-03-03 17:04:45,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:04:45,313 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:45,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:45,323 INFO L225 Difference]: With dead ends: 8509 [2022-03-03 17:04:45,323 INFO L226 Difference]: Without dead ends: 8017 [2022-03-03 17:04:45,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=1055, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:45,323 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 233 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:45,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2826 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:45,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-03-03 17:04:45,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7353. [2022-03-03 17:04:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7353 states, 7352 states have (on average 2.64689880304679) internal successors, (19460), 7352 states have internal predecessors, (19460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:45,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7353 states to 7353 states and 19460 transitions. [2022-03-03 17:04:45,447 INFO L78 Accepts]: Start accepts. Automaton has 7353 states and 19460 transitions. Word has length 109 [2022-03-03 17:04:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:45,448 INFO L470 AbstractCegarLoop]: Abstraction has 7353 states and 19460 transitions. [2022-03-03 17:04:45,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:45,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7353 states and 19460 transitions. [2022-03-03 17:04:45,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:45,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:45,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:45,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable443 [2022-03-03 17:04:45,456 INFO L402 AbstractCegarLoop]: === Iteration 445 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:45,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:45,457 INFO L85 PathProgramCache]: Analyzing trace with hash 879815300, now seen corresponding path program 143 times [2022-03-03 17:04:45,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:45,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069974901] [2022-03-03 17:04:45,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:45,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:45,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:45,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069974901] [2022-03-03 17:04:45,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069974901] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:45,558 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:45,558 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:45,558 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133970580] [2022-03-03 17:04:45,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:45,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:45,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:45,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:45,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:45,559 INFO L87 Difference]: Start difference. First operand 7353 states and 19460 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:46,272 INFO L93 Difference]: Finished difference Result 8861 states and 23376 transitions. [2022-03-03 17:04:46,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:04:46,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:46,283 INFO L225 Difference]: With dead ends: 8861 [2022-03-03 17:04:46,284 INFO L226 Difference]: Without dead ends: 8253 [2022-03-03 17:04:46,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=849, Invalid=2933, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 17:04:46,284 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 476 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 3286 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:46,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 3286 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8253 states. [2022-03-03 17:04:46,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8253 to 7357. [2022-03-03 17:04:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7357 states, 7356 states have (on average 2.646411092985318) internal successors, (19467), 7356 states have internal predecessors, (19467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7357 states to 7357 states and 19467 transitions. [2022-03-03 17:04:46,373 INFO L78 Accepts]: Start accepts. Automaton has 7357 states and 19467 transitions. Word has length 109 [2022-03-03 17:04:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:46,373 INFO L470 AbstractCegarLoop]: Abstraction has 7357 states and 19467 transitions. [2022-03-03 17:04:46,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7357 states and 19467 transitions. [2022-03-03 17:04:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:46,380 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:46,380 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:46,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable444 [2022-03-03 17:04:46,381 INFO L402 AbstractCegarLoop]: === Iteration 446 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1390656440, now seen corresponding path program 144 times [2022-03-03 17:04:46,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:46,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351141227] [2022-03-03 17:04:46,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:46,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:46,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351141227] [2022-03-03 17:04:46,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351141227] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:46,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:46,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:46,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447699012] [2022-03-03 17:04:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:46,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:46,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:46,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:46,487 INFO L87 Difference]: Start difference. First operand 7357 states and 19467 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:47,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:47,173 INFO L93 Difference]: Finished difference Result 8744 states and 23069 transitions. [2022-03-03 17:04:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:04:47,173 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:47,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:47,185 INFO L225 Difference]: With dead ends: 8744 [2022-03-03 17:04:47,185 INFO L226 Difference]: Without dead ends: 8179 [2022-03-03 17:04:47,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 775 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=634, Invalid=2228, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:04:47,186 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 394 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:47,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [394 Valid, 2790 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:47,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-03-03 17:04:47,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7361. [2022-03-03 17:04:47,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 2.6459239130434784) internal successors, (19474), 7360 states have internal predecessors, (19474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 19474 transitions. [2022-03-03 17:04:47,297 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 19474 transitions. Word has length 109 [2022-03-03 17:04:47,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:47,297 INFO L470 AbstractCegarLoop]: Abstraction has 7361 states and 19474 transitions. [2022-03-03 17:04:47,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:47,297 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 19474 transitions. [2022-03-03 17:04:47,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:47,305 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:47,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:47,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable445 [2022-03-03 17:04:47,306 INFO L402 AbstractCegarLoop]: === Iteration 447 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:47,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:47,306 INFO L85 PathProgramCache]: Analyzing trace with hash -526225378, now seen corresponding path program 145 times [2022-03-03 17:04:47,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:47,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938027570] [2022-03-03 17:04:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:47,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:47,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:47,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938027570] [2022-03-03 17:04:47,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938027570] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:47,414 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:47,414 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:47,414 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180529115] [2022-03-03 17:04:47,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:47,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:47,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:47,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:47,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:47,415 INFO L87 Difference]: Start difference. First operand 7361 states and 19474 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:47,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:47,972 INFO L93 Difference]: Finished difference Result 8627 states and 22762 transitions. [2022-03-03 17:04:47,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:47,972 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:47,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:47,983 INFO L225 Difference]: With dead ends: 8627 [2022-03-03 17:04:47,983 INFO L226 Difference]: Without dead ends: 8105 [2022-03-03 17:04:47,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:04:47,984 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 322 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:47,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2705 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:47,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2022-03-03 17:04:48,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 7365. [2022-03-03 17:04:48,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7365 states, 7364 states have (on average 2.6454372623574143) internal successors, (19481), 7364 states have internal predecessors, (19481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7365 states to 7365 states and 19481 transitions. [2022-03-03 17:04:48,080 INFO L78 Accepts]: Start accepts. Automaton has 7365 states and 19481 transitions. Word has length 109 [2022-03-03 17:04:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:48,081 INFO L470 AbstractCegarLoop]: Abstraction has 7365 states and 19481 transitions. [2022-03-03 17:04:48,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 7365 states and 19481 transitions. [2022-03-03 17:04:48,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:48,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:48,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:48,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable446 [2022-03-03 17:04:48,088 INFO L402 AbstractCegarLoop]: === Iteration 448 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:48,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:48,088 INFO L85 PathProgramCache]: Analyzing trace with hash -2084140728, now seen corresponding path program 146 times [2022-03-03 17:04:48,088 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:48,088 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428279145] [2022-03-03 17:04:48,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:48,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:48,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:48,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428279145] [2022-03-03 17:04:48,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428279145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:48,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:48,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:48,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474737174] [2022-03-03 17:04:48,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:48,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:48,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:48,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:48,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:48,196 INFO L87 Difference]: Start difference. First operand 7365 states and 19481 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:48,580 INFO L93 Difference]: Finished difference Result 8479 states and 22376 transitions. [2022-03-03 17:04:48,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:48,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:48,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:48,589 INFO L225 Difference]: With dead ends: 8479 [2022-03-03 17:04:48,589 INFO L226 Difference]: Without dead ends: 8000 [2022-03-03 17:04:48,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1088, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:48,590 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 251 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:48,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2405 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:48,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8000 states. [2022-03-03 17:04:48,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8000 to 7369. [2022-03-03 17:04:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7369 states, 7368 states have (on average 2.6449511400651464) internal successors, (19488), 7368 states have internal predecessors, (19488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7369 states to 7369 states and 19488 transitions. [2022-03-03 17:04:48,678 INFO L78 Accepts]: Start accepts. Automaton has 7369 states and 19488 transitions. Word has length 109 [2022-03-03 17:04:48,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:48,678 INFO L470 AbstractCegarLoop]: Abstraction has 7369 states and 19488 transitions. [2022-03-03 17:04:48,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,678 INFO L276 IsEmpty]: Start isEmpty. Operand 7369 states and 19488 transitions. [2022-03-03 17:04:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:48,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:48,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:48,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable447 [2022-03-03 17:04:48,686 INFO L402 AbstractCegarLoop]: === Iteration 449 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:48,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:48,686 INFO L85 PathProgramCache]: Analyzing trace with hash -456617610, now seen corresponding path program 147 times [2022-03-03 17:04:48,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:48,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765318797] [2022-03-03 17:04:48,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:48,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:48,793 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:48,793 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765318797] [2022-03-03 17:04:48,793 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765318797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:48,793 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:48,793 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:48,793 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84473111] [2022-03-03 17:04:48,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:48,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:48,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:48,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:48,794 INFO L87 Difference]: Start difference. First operand 7369 states and 19488 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:49,171 INFO L93 Difference]: Finished difference Result 8365 states and 22067 transitions. [2022-03-03 17:04:49,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:04:49,172 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:49,183 INFO L225 Difference]: With dead ends: 8365 [2022-03-03 17:04:49,184 INFO L226 Difference]: Without dead ends: 7843 [2022-03-03 17:04:49,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=332, Invalid=928, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:49,184 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 220 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:49,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2346 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7843 states. [2022-03-03 17:04:49,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7843 to 7323. [2022-03-03 17:04:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7323 states, 7322 states have (on average 2.647637257579896) internal successors, (19386), 7322 states have internal predecessors, (19386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7323 states to 7323 states and 19386 transitions. [2022-03-03 17:04:49,293 INFO L78 Accepts]: Start accepts. Automaton has 7323 states and 19386 transitions. Word has length 109 [2022-03-03 17:04:49,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:49,293 INFO L470 AbstractCegarLoop]: Abstraction has 7323 states and 19386 transitions. [2022-03-03 17:04:49,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:49,293 INFO L276 IsEmpty]: Start isEmpty. Operand 7323 states and 19386 transitions. [2022-03-03 17:04:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:49,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:49,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:49,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable448 [2022-03-03 17:04:49,302 INFO L402 AbstractCegarLoop]: === Iteration 450 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash -993153118, now seen corresponding path program 148 times [2022-03-03 17:04:49,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:49,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426259871] [2022-03-03 17:04:49,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:49,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:49,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426259871] [2022-03-03 17:04:49,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426259871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:49,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:49,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:49,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292461420] [2022-03-03 17:04:49,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:49,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:49,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:49,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:49,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:49,408 INFO L87 Difference]: Start difference. First operand 7323 states and 19386 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:49,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:49,785 INFO L93 Difference]: Finished difference Result 8633 states and 22820 transitions. [2022-03-03 17:04:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:04:49,785 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:49,797 INFO L225 Difference]: With dead ends: 8633 [2022-03-03 17:04:49,798 INFO L226 Difference]: Without dead ends: 8154 [2022-03-03 17:04:49,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:04:49,798 INFO L933 BasicCegarLoop]: 254 mSDtfsCounter, 229 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:49,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1949 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:49,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8154 states. [2022-03-03 17:04:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8154 to 7347. [2022-03-03 17:04:49,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6474271712496598) internal successors, (19448), 7346 states have internal predecessors, (19448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19448 transitions. [2022-03-03 17:04:49,908 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19448 transitions. Word has length 109 [2022-03-03 17:04:49,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:49,909 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19448 transitions. [2022-03-03 17:04:49,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19448 transitions. [2022-03-03 17:04:49,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:49,917 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:49,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:49,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449 [2022-03-03 17:04:49,917 INFO L402 AbstractCegarLoop]: === Iteration 451 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:49,917 INFO L85 PathProgramCache]: Analyzing trace with hash 634370000, now seen corresponding path program 149 times [2022-03-03 17:04:49,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:49,918 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039373986] [2022-03-03 17:04:49,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:49,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:50,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:50,022 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:50,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039373986] [2022-03-03 17:04:50,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039373986] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:50,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:50,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:50,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264354346] [2022-03-03 17:04:50,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:50,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:50,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:50,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:50,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:50,023 INFO L87 Difference]: Start difference. First operand 7347 states and 19448 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:50,478 INFO L93 Difference]: Finished difference Result 8599 states and 22731 transitions. [2022-03-03 17:04:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:50,490 INFO L225 Difference]: With dead ends: 8599 [2022-03-03 17:04:50,490 INFO L226 Difference]: Without dead ends: 8119 [2022-03-03 17:04:50,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=369, Invalid=1191, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 17:04:50,490 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 210 mSDsluCounter, 2521 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:50,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2727 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:50,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-03-03 17:04:50,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7343. [2022-03-03 17:04:50,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6473712884772542) internal successors, (19437), 7342 states have internal predecessors, (19437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19437 transitions. [2022-03-03 17:04:50,600 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19437 transitions. Word has length 109 [2022-03-03 17:04:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:50,600 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19437 transitions. [2022-03-03 17:04:50,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19437 transitions. [2022-03-03 17:04:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:50,608 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:50,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:50,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable450 [2022-03-03 17:04:50,608 INFO L402 AbstractCegarLoop]: === Iteration 452 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash -486687340, now seen corresponding path program 150 times [2022-03-03 17:04:50,609 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:50,609 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126129010] [2022-03-03 17:04:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:50,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:50,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:50,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:50,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126129010] [2022-03-03 17:04:50,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126129010] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:50,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:50,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:50,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715218747] [2022-03-03 17:04:50,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:50,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:50,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:50,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:50,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:50,721 INFO L87 Difference]: Start difference. First operand 7343 states and 19437 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:51,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:51,253 INFO L93 Difference]: Finished difference Result 8635 states and 22826 transitions. [2022-03-03 17:04:51,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:51,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:51,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:51,266 INFO L225 Difference]: With dead ends: 8635 [2022-03-03 17:04:51,266 INFO L226 Difference]: Without dead ends: 8115 [2022-03-03 17:04:51,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2022-03-03 17:04:51,267 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 284 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:51,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 2315 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2022-03-03 17:04:51,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 7339. [2022-03-03 17:04:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.647315344780594) internal successors, (19426), 7338 states have internal predecessors, (19426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:51,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19426 transitions. [2022-03-03 17:04:51,409 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19426 transitions. Word has length 109 [2022-03-03 17:04:51,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:51,409 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19426 transitions. [2022-03-03 17:04:51,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:51,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19426 transitions. [2022-03-03 17:04:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:51,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:51,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:51,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable451 [2022-03-03 17:04:51,418 INFO L402 AbstractCegarLoop]: === Iteration 453 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:51,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1011822876, now seen corresponding path program 151 times [2022-03-03 17:04:51,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:51,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662435308] [2022-03-03 17:04:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:51,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:51,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:51,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662435308] [2022-03-03 17:04:51,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662435308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:51,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:51,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:51,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414952900] [2022-03-03 17:04:51,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:51,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:51,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:51,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:51,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:51,519 INFO L87 Difference]: Start difference. First operand 7339 states and 19426 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:52,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:52,093 INFO L93 Difference]: Finished difference Result 8751 states and 23117 transitions. [2022-03-03 17:04:52,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:04:52,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:52,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:52,104 INFO L225 Difference]: With dead ends: 8751 [2022-03-03 17:04:52,104 INFO L226 Difference]: Without dead ends: 8191 [2022-03-03 17:04:52,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=684, Invalid=1968, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:04:52,105 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 336 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:52,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 2796 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8191 states. [2022-03-03 17:04:52,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8191 to 7335. [2022-03-03 17:04:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6472593400599944) internal successors, (19415), 7334 states have internal predecessors, (19415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19415 transitions. [2022-03-03 17:04:52,193 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19415 transitions. Word has length 109 [2022-03-03 17:04:52,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:52,193 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19415 transitions. [2022-03-03 17:04:52,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:52,193 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19415 transitions. [2022-03-03 17:04:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:52,200 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:52,200 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:52,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable452 [2022-03-03 17:04:52,200 INFO L402 AbstractCegarLoop]: === Iteration 454 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:52,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1202136280, now seen corresponding path program 152 times [2022-03-03 17:04:52,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:52,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730193720] [2022-03-03 17:04:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:52,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:52,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730193720] [2022-03-03 17:04:52,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730193720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:52,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:52,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:52,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315611487] [2022-03-03 17:04:52,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:52,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:52,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:52,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:52,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:52,317 INFO L87 Difference]: Start difference. First operand 7335 states and 19415 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:52,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:52,706 INFO L93 Difference]: Finished difference Result 8701 states and 23003 transitions. [2022-03-03 17:04:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:52,706 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:52,717 INFO L225 Difference]: With dead ends: 8701 [2022-03-03 17:04:52,717 INFO L226 Difference]: Without dead ends: 8222 [2022-03-03 17:04:52,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:52,717 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 241 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:52,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2321 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:52,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8222 states. [2022-03-03 17:04:52,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8222 to 7347. [2022-03-03 17:04:52,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-03-03 17:04:52,807 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-03-03 17:04:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:52,807 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-03-03 17:04:52,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-03-03 17:04:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:52,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:52,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:52,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable453 [2022-03-03 17:04:52,815 INFO L402 AbstractCegarLoop]: === Iteration 455 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:52,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash 425386838, now seen corresponding path program 153 times [2022-03-03 17:04:52,818 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:52,818 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6147482] [2022-03-03 17:04:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:52,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:52,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:52,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:52,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6147482] [2022-03-03 17:04:52,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6147482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:52,922 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:52,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:52,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453849062] [2022-03-03 17:04:52,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:52,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:52,922 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:52,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:52,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:52,923 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:53,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:53,365 INFO L93 Difference]: Finished difference Result 8659 states and 22892 transitions. [2022-03-03 17:04:53,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:53,366 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:53,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:53,376 INFO L225 Difference]: With dead ends: 8659 [2022-03-03 17:04:53,376 INFO L226 Difference]: Without dead ends: 8179 [2022-03-03 17:04:53,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:04:53,376 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 227 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:53,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 2584 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:53,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2022-03-03 17:04:53,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7343. [2022-03-03 17:04:53,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-03-03 17:04:53,464 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-03-03 17:04:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:53,464 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-03-03 17:04:53,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:53,464 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-03-03 17:04:53,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:53,472 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:53,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:53,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable454 [2022-03-03 17:04:53,472 INFO L402 AbstractCegarLoop]: === Iteration 456 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:53,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:53,472 INFO L85 PathProgramCache]: Analyzing trace with hash -695670502, now seen corresponding path program 154 times [2022-03-03 17:04:53,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:53,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012589198] [2022-03-03 17:04:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:53,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:53,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:53,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:53,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012589198] [2022-03-03 17:04:53,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012589198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:53,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:53,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:53,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616827257] [2022-03-03 17:04:53,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:53,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:53,574 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:53,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:53,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:53,574 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:54,083 INFO L93 Difference]: Finished difference Result 8787 states and 23224 transitions. [2022-03-03 17:04:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:54,084 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:54,094 INFO L225 Difference]: With dead ends: 8787 [2022-03-03 17:04:54,094 INFO L226 Difference]: Without dead ends: 8267 [2022-03-03 17:04:54,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:04:54,094 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 298 mSDsluCounter, 2417 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:54,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2631 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:54,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-03-03 17:04:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7339. [2022-03-03 17:04:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:54,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-03-03 17:04:54,186 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-03-03 17:04:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:54,186 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-03-03 17:04:54,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:54,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-03-03 17:04:54,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:54,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:54,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:54,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable455 [2022-03-03 17:04:54,195 INFO L402 AbstractCegarLoop]: === Iteration 457 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:54,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:54,195 INFO L85 PathProgramCache]: Analyzing trace with hash -623040778, now seen corresponding path program 155 times [2022-03-03 17:04:54,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:54,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947314562] [2022-03-03 17:04:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:54,300 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:54,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947314562] [2022-03-03 17:04:54,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947314562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:54,300 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:54,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:54,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635624596] [2022-03-03 17:04:54,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:54,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:54,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:54,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:54,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:54,301 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:54,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:54,804 INFO L93 Difference]: Finished difference Result 8789 states and 23216 transitions. [2022-03-03 17:04:54,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:04:54,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:54,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:54,815 INFO L225 Difference]: With dead ends: 8789 [2022-03-03 17:04:54,815 INFO L226 Difference]: Without dead ends: 8267 [2022-03-03 17:04:54,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1434, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:04:54,816 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 300 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:54,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 2396 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2022-03-03 17:04:54,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7343. [2022-03-03 17:04:54,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:54,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-03-03 17:04:54,904 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-03-03 17:04:54,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:54,904 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-03-03 17:04:54,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:54,904 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-03-03 17:04:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:54,912 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:54,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:54,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable456 [2022-03-03 17:04:54,912 INFO L402 AbstractCegarLoop]: === Iteration 458 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:54,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2114011168, now seen corresponding path program 156 times [2022-03-03 17:04:54,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:54,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335327958] [2022-03-03 17:04:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:55,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:55,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:55,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335327958] [2022-03-03 17:04:55,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335327958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:55,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:55,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:55,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754071669] [2022-03-03 17:04:55,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:55,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:55,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:55,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:55,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:55,021 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:55,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:55,439 INFO L93 Difference]: Finished difference Result 8641 states and 22830 transitions. [2022-03-03 17:04:55,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:55,439 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:55,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:55,449 INFO L225 Difference]: With dead ends: 8641 [2022-03-03 17:04:55,449 INFO L226 Difference]: Without dead ends: 8162 [2022-03-03 17:04:55,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:55,449 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 233 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:55,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2377 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:55,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8162 states. [2022-03-03 17:04:55,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8162 to 7347. [2022-03-03 17:04:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-03-03 17:04:55,535 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-03-03 17:04:55,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:55,535 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-03-03 17:04:55,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:55,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-03-03 17:04:55,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:55,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:55,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:55,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable457 [2022-03-03 17:04:55,543 INFO L402 AbstractCegarLoop]: === Iteration 459 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:55,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:55,543 INFO L85 PathProgramCache]: Analyzing trace with hash -553433010, now seen corresponding path program 157 times [2022-03-03 17:04:55,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:55,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993199838] [2022-03-03 17:04:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:55,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:55,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:55,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993199838] [2022-03-03 17:04:55,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993199838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:55,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:55,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:55,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724517722] [2022-03-03 17:04:55,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:55,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:55,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:55,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:55,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:55,654 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:56,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:56,053 INFO L93 Difference]: Finished difference Result 8559 states and 22609 transitions. [2022-03-03 17:04:56,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:56,053 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:56,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:56,062 INFO L225 Difference]: With dead ends: 8559 [2022-03-03 17:04:56,063 INFO L226 Difference]: Without dead ends: 8067 [2022-03-03 17:04:56,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:04:56,063 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 219 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:56,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2395 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8067 states. [2022-03-03 17:04:56,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8067 to 7331. [2022-03-03 17:04:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6472032742155527) internal successors, (19404), 7330 states have internal predecessors, (19404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:56,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19404 transitions. [2022-03-03 17:04:56,150 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19404 transitions. Word has length 109 [2022-03-03 17:04:56,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:56,150 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19404 transitions. [2022-03-03 17:04:56,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:56,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19404 transitions. [2022-03-03 17:04:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:56,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:56,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:56,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable458 [2022-03-03 17:04:56,158 INFO L402 AbstractCegarLoop]: === Iteration 460 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:56,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1250172384, now seen corresponding path program 158 times [2022-03-03 17:04:56,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:56,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912520550] [2022-03-03 17:04:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:56,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:56,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:56,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:56,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912520550] [2022-03-03 17:04:56,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912520550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:56,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:56,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:56,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415778197] [2022-03-03 17:04:56,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:56,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:56,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:56,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:56,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:56,275 INFO L87 Difference]: Start difference. First operand 7331 states and 19404 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:56,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:56,690 INFO L93 Difference]: Finished difference Result 8737 states and 23102 transitions. [2022-03-03 17:04:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:04:56,690 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:56,699 INFO L225 Difference]: With dead ends: 8737 [2022-03-03 17:04:56,700 INFO L226 Difference]: Without dead ends: 8258 [2022-03-03 17:04:56,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:04:56,700 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 249 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:56,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2577 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:56,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-03-03 17:04:56,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-03-03 17:04:56,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:56,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-03-03 17:04:56,789 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-03-03 17:04:56,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:56,789 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-03-03 17:04:56,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:56,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-03-03 17:04:56,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:56,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:56,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:56,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable459 [2022-03-03 17:04:56,797 INFO L402 AbstractCegarLoop]: === Iteration 461 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:56,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:56,797 INFO L85 PathProgramCache]: Analyzing trace with hash 377350734, now seen corresponding path program 159 times [2022-03-03 17:04:56,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:56,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347497980] [2022-03-03 17:04:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:56,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:56,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:56,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347497980] [2022-03-03 17:04:56,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347497980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:56,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:56,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:56,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957826439] [2022-03-03 17:04:56,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:56,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:56,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:56,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:56,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:56,901 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:57,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:57,355 INFO L93 Difference]: Finished difference Result 8695 states and 22991 transitions. [2022-03-03 17:04:57,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:57,355 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:57,365 INFO L225 Difference]: With dead ends: 8695 [2022-03-03 17:04:57,365 INFO L226 Difference]: Without dead ends: 8215 [2022-03-03 17:04:57,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-03 17:04:57,366 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 231 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:57,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 2572 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:57,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8215 states. [2022-03-03 17:04:57,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8215 to 7343. [2022-03-03 17:04:57,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-03-03 17:04:57,457 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-03-03 17:04:57,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:57,457 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-03-03 17:04:57,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:57,458 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-03-03 17:04:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:57,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:57,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:57,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable460 [2022-03-03 17:04:57,466 INFO L402 AbstractCegarLoop]: === Iteration 462 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:57,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:57,466 INFO L85 PathProgramCache]: Analyzing trace with hash -743706606, now seen corresponding path program 160 times [2022-03-03 17:04:57,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:57,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513687930] [2022-03-03 17:04:57,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:57,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:57,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:57,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513687930] [2022-03-03 17:04:57,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513687930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:57,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:57,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:57,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307511578] [2022-03-03 17:04:57,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:57,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:57,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:57,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:57,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:57,575 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:58,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:58,144 INFO L93 Difference]: Finished difference Result 8803 states and 23268 transitions. [2022-03-03 17:04:58,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:04:58,145 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:58,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:58,157 INFO L225 Difference]: With dead ends: 8803 [2022-03-03 17:04:58,157 INFO L226 Difference]: Without dead ends: 8283 [2022-03-03 17:04:58,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=515, Invalid=1465, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:04:58,158 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 292 mSDsluCounter, 2577 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:58,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2787 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:58,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-03-03 17:04:58,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7339. [2022-03-03 17:04:58,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-03-03 17:04:58,268 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-03-03 17:04:58,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:58,268 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-03-03 17:04:58,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:58,268 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-03-03 17:04:58,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:58,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:58,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:58,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable461 [2022-03-03 17:04:58,276 INFO L402 AbstractCegarLoop]: === Iteration 463 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:58,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:58,276 INFO L85 PathProgramCache]: Analyzing trace with hash -671076882, now seen corresponding path program 161 times [2022-03-03 17:04:58,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:58,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230631193] [2022-03-03 17:04:58,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:58,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:58,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:58,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230631193] [2022-03-03 17:04:58,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230631193] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:58,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:58,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:58,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864434140] [2022-03-03 17:04:58,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:58,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:58,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:58,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:58,382 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:58,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:58,927 INFO L93 Difference]: Finished difference Result 8901 states and 23524 transitions. [2022-03-03 17:04:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:58,927 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:58,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:58,938 INFO L225 Difference]: With dead ends: 8901 [2022-03-03 17:04:58,938 INFO L226 Difference]: Without dead ends: 8379 [2022-03-03 17:04:58,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1511, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:04:58,938 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 309 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:58,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 2868 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:58,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8379 states. [2022-03-03 17:04:59,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8379 to 7343. [2022-03-03 17:04:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:59,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-03-03 17:04:59,028 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-03-03 17:04:59,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:59,028 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-03-03 17:04:59,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:59,029 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-03-03 17:04:59,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:59,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:59,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:59,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable462 [2022-03-03 17:04:59,036 INFO L402 AbstractCegarLoop]: === Iteration 464 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:59,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2065975064, now seen corresponding path program 162 times [2022-03-03 17:04:59,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:59,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179776563] [2022-03-03 17:04:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:59,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:59,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:59,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:59,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179776563] [2022-03-03 17:04:59,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179776563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:59,143 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:59,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:59,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169894090] [2022-03-03 17:04:59,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:59,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:59,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:59,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:59,144 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:59,579 INFO L93 Difference]: Finished difference Result 8737 states and 23094 transitions. [2022-03-03 17:04:59,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:04:59,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:04:59,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:59,591 INFO L225 Difference]: With dead ends: 8737 [2022-03-03 17:04:59,591 INFO L226 Difference]: Without dead ends: 8258 [2022-03-03 17:04:59,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:04:59,592 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 248 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:59,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 2602 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:04:59,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-03-03 17:04:59,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 7347. [2022-03-03 17:04:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:59,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-03-03 17:04:59,698 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-03-03 17:04:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:59,698 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-03-03 17:04:59,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:59,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-03-03 17:04:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:04:59,707 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:59,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:59,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable463 [2022-03-03 17:04:59,707 INFO L402 AbstractCegarLoop]: === Iteration 465 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:59,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:59,707 INFO L85 PathProgramCache]: Analyzing trace with hash -601469114, now seen corresponding path program 163 times [2022-03-03 17:04:59,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:59,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076689089] [2022-03-03 17:04:59,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:59,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:59,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:59,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076689089] [2022-03-03 17:04:59,813 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076689089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:59,813 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:59,813 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:04:59,813 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145430761] [2022-03-03 17:04:59,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:59,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:04:59,813 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:04:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:04:59,814 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:00,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:00,239 INFO L93 Difference]: Finished difference Result 8671 states and 22917 transitions. [2022-03-03 17:05:00,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:00,239 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:00,249 INFO L225 Difference]: With dead ends: 8671 [2022-03-03 17:05:00,249 INFO L226 Difference]: Without dead ends: 8183 [2022-03-03 17:05:00,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=358, Invalid=1124, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:00,250 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 226 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:00,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2725 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:00,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2022-03-03 17:05:00,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 7335. [2022-03-03 17:05:00,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:00,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-03-03 17:05:00,335 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-03-03 17:05:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:00,336 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-03-03 17:05:00,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-03-03 17:05:00,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:00,342 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:00,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:00,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable464 [2022-03-03 17:05:00,343 INFO L402 AbstractCegarLoop]: === Iteration 466 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:00,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:00,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1883813214, now seen corresponding path program 164 times [2022-03-03 17:05:00,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:00,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945253042] [2022-03-03 17:05:00,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:00,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:00,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:00,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945253042] [2022-03-03 17:05:00,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945253042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:00,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:00,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:00,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19204184] [2022-03-03 17:05:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:00,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:00,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:00,448 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:01,125 INFO L93 Difference]: Finished difference Result 8922 states and 23563 transitions. [2022-03-03 17:05:01,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:05:01,126 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:01,138 INFO L225 Difference]: With dead ends: 8922 [2022-03-03 17:05:01,138 INFO L226 Difference]: Without dead ends: 8357 [2022-03-03 17:05:01,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=636, Invalid=2016, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:05:01,139 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 373 mSDsluCounter, 2733 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:01,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 2934 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:01,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8357 states. [2022-03-03 17:05:01,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8357 to 7339. [2022-03-03 17:05:01,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:01,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-03-03 17:05:01,251 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-03-03 17:05:01,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:01,252 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-03-03 17:05:01,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:01,252 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-03-03 17:05:01,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:01,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:01,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:01,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable465 [2022-03-03 17:05:01,261 INFO L402 AbstractCegarLoop]: === Iteration 467 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:01,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1019382152, now seen corresponding path program 165 times [2022-03-03 17:05:01,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:01,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997872424] [2022-03-03 17:05:01,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:01,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:01,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:01,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:01,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997872424] [2022-03-03 17:05:01,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997872424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:01,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:01,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:01,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604646412] [2022-03-03 17:05:01,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:01,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:01,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:01,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:01,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:01,372 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:01,963 INFO L93 Difference]: Finished difference Result 8805 states and 23256 transitions. [2022-03-03 17:05:01,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:01,963 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:01,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:01,974 INFO L225 Difference]: With dead ends: 8805 [2022-03-03 17:05:01,975 INFO L226 Difference]: Without dead ends: 8283 [2022-03-03 17:05:01,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=482, Invalid=1588, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:05:01,975 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 316 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:01,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2442 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:01,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2022-03-03 17:05:02,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 7343. [2022-03-03 17:05:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:02,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-03-03 17:05:02,082 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-03-03 17:05:02,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:02,083 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-03-03 17:05:02,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:02,083 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-03-03 17:05:02,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:02,091 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:02,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:02,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable466 [2022-03-03 17:05:02,091 INFO L402 AbstractCegarLoop]: === Iteration 468 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:02,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:02,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1717669794, now seen corresponding path program 166 times [2022-03-03 17:05:02,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:02,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682447643] [2022-03-03 17:05:02,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:02,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:02,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:02,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:02,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682447643] [2022-03-03 17:05:02,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682447643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:02,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:02,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:02,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764005345] [2022-03-03 17:05:02,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:02,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:02,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:02,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:02,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:02,202 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:02,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:02,644 INFO L93 Difference]: Finished difference Result 8657 states and 22870 transitions. [2022-03-03 17:05:02,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:02,644 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:02,655 INFO L225 Difference]: With dead ends: 8657 [2022-03-03 17:05:02,655 INFO L226 Difference]: Without dead ends: 8178 [2022-03-03 17:05:02,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1145, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:02,656 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 246 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:02,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2579 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8178 states. [2022-03-03 17:05:02,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8178 to 7347. [2022-03-03 17:05:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-03-03 17:05:02,757 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-03-03 17:05:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:02,757 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-03-03 17:05:02,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-03-03 17:05:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:02,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:02,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:02,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable467 [2022-03-03 17:05:02,764 INFO L402 AbstractCegarLoop]: === Iteration 469 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:02,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash -949774384, now seen corresponding path program 167 times [2022-03-03 17:05:02,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:02,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993036000] [2022-03-03 17:05:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:02,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:02,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993036000] [2022-03-03 17:05:02,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993036000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:02,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:02,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:02,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334089228] [2022-03-03 17:05:02,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:02,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:02,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:02,867 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:03,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:03,312 INFO L93 Difference]: Finished difference Result 8559 states and 22605 transitions. [2022-03-03 17:05:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:03,312 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:03,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:03,323 INFO L225 Difference]: With dead ends: 8559 [2022-03-03 17:05:03,323 INFO L226 Difference]: Without dead ends: 8063 [2022-03-03 17:05:03,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:03,323 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 209 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:03,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2868 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:03,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-03-03 17:05:03,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7327. [2022-03-03 17:05:03,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7327 states, 7326 states have (on average 2.6471471471471473) internal successors, (19393), 7326 states have internal predecessors, (19393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:03,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7327 states to 7327 states and 19393 transitions. [2022-03-03 17:05:03,427 INFO L78 Accepts]: Start accepts. Automaton has 7327 states and 19393 transitions. Word has length 109 [2022-03-03 17:05:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:03,428 INFO L470 AbstractCegarLoop]: Abstraction has 7327 states and 19393 transitions. [2022-03-03 17:05:03,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 7327 states and 19393 transitions. [2022-03-03 17:05:03,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:03,436 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:03,436 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:03,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable468 [2022-03-03 17:05:03,436 INFO L402 AbstractCegarLoop]: === Iteration 470 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:03,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:03,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1941281456, now seen corresponding path program 168 times [2022-03-03 17:05:03,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:03,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626767534] [2022-03-03 17:05:03,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:03,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:03,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:03,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626767534] [2022-03-03 17:05:03,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626767534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:03,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:03,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:03,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264920264] [2022-03-03 17:05:03,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:03,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:03,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:03,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:03,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:03,546 INFO L87 Difference]: Start difference. First operand 7327 states and 19393 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:03,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:03,941 INFO L93 Difference]: Finished difference Result 8593 states and 22706 transitions. [2022-03-03 17:05:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:03,941 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:03,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:03,952 INFO L225 Difference]: With dead ends: 8593 [2022-03-03 17:05:03,952 INFO L226 Difference]: Without dead ends: 8114 [2022-03-03 17:05:03,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:03,953 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 241 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2524 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:03,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2524 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8114 states. [2022-03-03 17:05:04,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8114 to 7347. [2022-03-03 17:05:04,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6468826572284234) internal successors, (19444), 7346 states have internal predecessors, (19444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19444 transitions. [2022-03-03 17:05:04,055 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19444 transitions. Word has length 109 [2022-03-03 17:05:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:04,055 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19444 transitions. [2022-03-03 17:05:04,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19444 transitions. [2022-03-03 17:05:04,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:04,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:04,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:04,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable469 [2022-03-03 17:05:04,063 INFO L402 AbstractCegarLoop]: === Iteration 471 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash -726162722, now seen corresponding path program 169 times [2022-03-03 17:05:04,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:04,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973059659] [2022-03-03 17:05:04,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:04,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:04,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:04,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973059659] [2022-03-03 17:05:04,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973059659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:04,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:04,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:04,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131388165] [2022-03-03 17:05:04,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:04,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:04,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:04,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:04,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:04,173 INFO L87 Difference]: Start difference. First operand 7347 states and 19444 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:04,621 INFO L93 Difference]: Finished difference Result 8551 states and 22595 transitions. [2022-03-03 17:05:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:04,631 INFO L225 Difference]: With dead ends: 8551 [2022-03-03 17:05:04,631 INFO L226 Difference]: Without dead ends: 8071 [2022-03-03 17:05:04,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:04,632 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 214 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:04,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2679 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:04,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2022-03-03 17:05:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 7343. [2022-03-03 17:05:04,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6468264777989647) internal successors, (19433), 7342 states have internal predecessors, (19433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19433 transitions. [2022-03-03 17:05:04,724 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19433 transitions. Word has length 109 [2022-03-03 17:05:04,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:04,724 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19433 transitions. [2022-03-03 17:05:04,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:04,725 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19433 transitions. [2022-03-03 17:05:04,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:04,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:04,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:04,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable470 [2022-03-03 17:05:04,733 INFO L402 AbstractCegarLoop]: === Iteration 472 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:04,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1847220062, now seen corresponding path program 170 times [2022-03-03 17:05:04,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:04,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301081442] [2022-03-03 17:05:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:04,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:04,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:04,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301081442] [2022-03-03 17:05:04,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301081442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:04,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:04,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:04,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320193094] [2022-03-03 17:05:04,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:04,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:04,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:04,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:04,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:04,839 INFO L87 Difference]: Start difference. First operand 7343 states and 19433 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:05,330 INFO L93 Difference]: Finished difference Result 8639 states and 22817 transitions. [2022-03-03 17:05:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:05:05,330 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:05,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:05,340 INFO L225 Difference]: With dead ends: 8639 [2022-03-03 17:05:05,340 INFO L226 Difference]: Without dead ends: 8119 [2022-03-03 17:05:05,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:05:05,341 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 290 mSDsluCounter, 2559 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:05,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2768 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2022-03-03 17:05:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7339. [2022-03-03 17:05:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6467702371218316) internal successors, (19422), 7338 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19422 transitions. [2022-03-03 17:05:05,433 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19422 transitions. Word has length 109 [2022-03-03 17:05:05,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:05,433 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19422 transitions. [2022-03-03 17:05:05,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:05,433 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19422 transitions. [2022-03-03 17:05:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:05,440 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:05,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:05,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable471 [2022-03-03 17:05:05,440 INFO L402 AbstractCegarLoop]: === Iteration 473 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:05,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1774590338, now seen corresponding path program 171 times [2022-03-03 17:05:05,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:05,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346099991] [2022-03-03 17:05:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:05,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:05,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:05,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346099991] [2022-03-03 17:05:05,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346099991] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:05,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:05,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:05,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768387342] [2022-03-03 17:05:05,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:05,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:05,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:05,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:05,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:05,551 INFO L87 Difference]: Start difference. First operand 7339 states and 19422 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:06,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:06,074 INFO L93 Difference]: Finished difference Result 8753 states and 23117 transitions. [2022-03-03 17:05:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:06,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:06,085 INFO L225 Difference]: With dead ends: 8753 [2022-03-03 17:05:06,085 INFO L226 Difference]: Without dead ends: 8231 [2022-03-03 17:05:06,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:05:06,085 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 331 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2777 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:06,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2777 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-03-03 17:05:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7343. [2022-03-03 17:05:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.6462816671206757) internal successors, (19429), 7342 states have internal predecessors, (19429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19429 transitions. [2022-03-03 17:05:06,176 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19429 transitions. Word has length 109 [2022-03-03 17:05:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:06,176 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19429 transitions. [2022-03-03 17:05:06,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:06,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19429 transitions. [2022-03-03 17:05:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:06,184 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:06,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:06,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable472 [2022-03-03 17:05:06,184 INFO L402 AbstractCegarLoop]: === Iteration 474 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash 962461608, now seen corresponding path program 172 times [2022-03-03 17:05:06,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:06,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771000940] [2022-03-03 17:05:06,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:06,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:06,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:06,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771000940] [2022-03-03 17:05:06,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771000940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:06,292 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:06,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:06,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301144055] [2022-03-03 17:05:06,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:06,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:06,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:06,292 INFO L87 Difference]: Start difference. First operand 7343 states and 19429 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:06,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:06,743 INFO L93 Difference]: Finished difference Result 8589 states and 22687 transitions. [2022-03-03 17:05:06,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:06,744 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:06,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:06,755 INFO L225 Difference]: With dead ends: 8589 [2022-03-03 17:05:06,755 INFO L226 Difference]: Without dead ends: 8110 [2022-03-03 17:05:06,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1073, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:06,755 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 255 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:06,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 2910 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8110 states. [2022-03-03 17:05:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8110 to 7347. [2022-03-03 17:05:06,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6457936291859516) internal successors, (19436), 7346 states have internal predecessors, (19436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19436 transitions. [2022-03-03 17:05:06,847 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19436 transitions. Word has length 109 [2022-03-03 17:05:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:06,847 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19436 transitions. [2022-03-03 17:05:06,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19436 transitions. [2022-03-03 17:05:06,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:06,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:06,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:06,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable473 [2022-03-03 17:05:06,855 INFO L402 AbstractCegarLoop]: === Iteration 475 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:06,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:06,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1704982570, now seen corresponding path program 173 times [2022-03-03 17:05:06,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:06,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875321374] [2022-03-03 17:05:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:06,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:06,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:06,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875321374] [2022-03-03 17:05:06,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875321374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:06,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:06,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:06,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927188614] [2022-03-03 17:05:06,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:06,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:06,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:06,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:06,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:06,982 INFO L87 Difference]: Start difference. First operand 7347 states and 19436 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:07,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:07,392 INFO L93 Difference]: Finished difference Result 8523 states and 22510 transitions. [2022-03-03 17:05:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:07,392 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:07,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:07,402 INFO L225 Difference]: With dead ends: 8523 [2022-03-03 17:05:07,402 INFO L226 Difference]: Without dead ends: 8035 [2022-03-03 17:05:07,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=362, Invalid=1120, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:07,403 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 233 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:07,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 2842 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:07,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8035 states. [2022-03-03 17:05:07,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8035 to 7335. [2022-03-03 17:05:07,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6467139350968094) internal successors, (19411), 7334 states have internal predecessors, (19411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19411 transitions. [2022-03-03 17:05:07,490 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19411 transitions. Word has length 109 [2022-03-03 17:05:07,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:07,490 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19411 transitions. [2022-03-03 17:05:07,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:07,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19411 transitions. [2022-03-03 17:05:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:07,497 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:07,497 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:07,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable474 [2022-03-03 17:05:07,497 INFO L402 AbstractCegarLoop]: === Iteration 476 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:07,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1307640626, now seen corresponding path program 174 times [2022-03-03 17:05:07,498 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:07,498 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529237031] [2022-03-03 17:05:07,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:07,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:07,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:07,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:07,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529237031] [2022-03-03 17:05:07,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529237031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:07,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:07,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:07,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969213575] [2022-03-03 17:05:07,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:07,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:07,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:07,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:07,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:07,605 INFO L87 Difference]: Start difference. First operand 7335 states and 19411 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:08,258 INFO L93 Difference]: Finished difference Result 8886 states and 23464 transitions. [2022-03-03 17:05:08,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:05:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:08,270 INFO L225 Difference]: With dead ends: 8886 [2022-03-03 17:05:08,271 INFO L226 Difference]: Without dead ends: 8321 [2022-03-03 17:05:08,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=642, Invalid=2114, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:05:08,271 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 407 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:08,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2891 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:08,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2022-03-03 17:05:08,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 7339. [2022-03-03 17:05:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.646225129463069) internal successors, (19418), 7338 states have internal predecessors, (19418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19418 transitions. [2022-03-03 17:05:08,385 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19418 transitions. Word has length 109 [2022-03-03 17:05:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:08,386 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19418 transitions. [2022-03-03 17:05:08,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19418 transitions. [2022-03-03 17:05:08,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:08,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:08,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:08,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable475 [2022-03-03 17:05:08,395 INFO L402 AbstractCegarLoop]: === Iteration 477 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:08,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:08,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2122895608, now seen corresponding path program 175 times [2022-03-03 17:05:08,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:08,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89581853] [2022-03-03 17:05:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:08,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:08,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:08,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:08,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89581853] [2022-03-03 17:05:08,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89581853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:08,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:08,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:08,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006590002] [2022-03-03 17:05:08,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:08,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:08,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:08,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:08,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:08,506 INFO L87 Difference]: Start difference. First operand 7339 states and 19418 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:09,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:09,044 INFO L93 Difference]: Finished difference Result 8761 states and 23135 transitions. [2022-03-03 17:05:09,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:09,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:09,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:09,054 INFO L225 Difference]: With dead ends: 8761 [2022-03-03 17:05:09,055 INFO L226 Difference]: Without dead ends: 8239 [2022-03-03 17:05:09,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:05:09,055 INFO L933 BasicCegarLoop]: 264 mSDtfsCounter, 331 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:09,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2785 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2022-03-03 17:05:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 7343. [2022-03-03 17:05:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645736856442386) internal successors, (19425), 7342 states have internal predecessors, (19425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19425 transitions. [2022-03-03 17:05:09,171 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19425 transitions. Word has length 109 [2022-03-03 17:05:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:09,171 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19425 transitions. [2022-03-03 17:05:09,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19425 transitions. [2022-03-03 17:05:09,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:09,180 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:09,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:09,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable476 [2022-03-03 17:05:09,180 INFO L402 AbstractCegarLoop]: === Iteration 478 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:09,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:09,181 INFO L85 PathProgramCache]: Analyzing trace with hash 614156338, now seen corresponding path program 176 times [2022-03-03 17:05:09,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:09,181 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309942294] [2022-03-03 17:05:09,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:09,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:09,298 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:09,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309942294] [2022-03-03 17:05:09,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309942294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:09,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:09,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:09,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362135026] [2022-03-03 17:05:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:09,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:09,299 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:09,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:09,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:09,299 INFO L87 Difference]: Start difference. First operand 7343 states and 19425 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:09,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:09,693 INFO L93 Difference]: Finished difference Result 8597 states and 22705 transitions. [2022-03-03 17:05:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:09,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:09,703 INFO L225 Difference]: With dead ends: 8597 [2022-03-03 17:05:09,703 INFO L226 Difference]: Without dead ends: 8118 [2022-03-03 17:05:09,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1078, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:09,703 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 260 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:09,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 2287 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:09,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8118 states. [2022-03-03 17:05:09,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8118 to 7347. [2022-03-03 17:05:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6452491151647153) internal successors, (19432), 7346 states have internal predecessors, (19432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:09,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19432 transitions. [2022-03-03 17:05:09,791 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19432 transitions. Word has length 109 [2022-03-03 17:05:09,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:09,791 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19432 transitions. [2022-03-03 17:05:09,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:09,791 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19432 transitions. [2022-03-03 17:05:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:09,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:09,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:09,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable477 [2022-03-03 17:05:09,799 INFO L402 AbstractCegarLoop]: === Iteration 479 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:09,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2053287840, now seen corresponding path program 177 times [2022-03-03 17:05:09,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:09,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029450709] [2022-03-03 17:05:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:09,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:09,902 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:09,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029450709] [2022-03-03 17:05:09,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029450709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:09,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:09,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:09,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379014999] [2022-03-03 17:05:09,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:09,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:09,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:09,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:09,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:09,903 INFO L87 Difference]: Start difference. First operand 7347 states and 19432 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:10,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:10,326 INFO L93 Difference]: Finished difference Result 8523 states and 22506 transitions. [2022-03-03 17:05:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:10,337 INFO L225 Difference]: With dead ends: 8523 [2022-03-03 17:05:10,337 INFO L226 Difference]: Without dead ends: 8031 [2022-03-03 17:05:10,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:10,337 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 236 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:10,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 2658 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:10,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8031 states. [2022-03-03 17:05:10,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8031 to 7331. [2022-03-03 17:05:10,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7331 states, 7330 states have (on average 2.6466575716234653) internal successors, (19400), 7330 states have internal predecessors, (19400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19400 transitions. [2022-03-03 17:05:10,437 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19400 transitions. Word has length 109 [2022-03-03 17:05:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:10,437 INFO L470 AbstractCegarLoop]: Abstraction has 7331 states and 19400 transitions. [2022-03-03 17:05:10,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19400 transitions. [2022-03-03 17:05:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:10,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:10,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:10,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable478 [2022-03-03 17:05:10,445 INFO L402 AbstractCegarLoop]: === Iteration 480 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:10,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1660117148, now seen corresponding path program 178 times [2022-03-03 17:05:10,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:10,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048112300] [2022-03-03 17:05:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:10,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:10,556 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:10,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048112300] [2022-03-03 17:05:10,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048112300] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:10,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:10,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:10,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548091868] [2022-03-03 17:05:10,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:10,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:10,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:10,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:10,557 INFO L87 Difference]: Start difference. First operand 7331 states and 19400 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:11,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:11,238 INFO L93 Difference]: Finished difference Result 8839 states and 23316 transitions. [2022-03-03 17:05:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-03 17:05:11,239 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:11,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:11,250 INFO L225 Difference]: With dead ends: 8839 [2022-03-03 17:05:11,250 INFO L226 Difference]: Without dead ends: 8231 [2022-03-03 17:05:11,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1024 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:05:11,251 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 485 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:11,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 2869 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:11,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2022-03-03 17:05:11,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 7335. [2022-03-03 17:05:11,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7335 states, 7334 states have (on average 2.6461685301336244) internal successors, (19407), 7334 states have internal predecessors, (19407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:11,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7335 states to 7335 states and 19407 transitions. [2022-03-03 17:05:11,361 INFO L78 Accepts]: Start accepts. Automaton has 7335 states and 19407 transitions. Word has length 109 [2022-03-03 17:05:11,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:11,361 INFO L470 AbstractCegarLoop]: Abstraction has 7335 states and 19407 transitions. [2022-03-03 17:05:11,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:11,361 INFO L276 IsEmpty]: Start isEmpty. Operand 7335 states and 19407 transitions. [2022-03-03 17:05:11,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:11,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:11,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:11,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable479 [2022-03-03 17:05:11,369 INFO L402 AbstractCegarLoop]: === Iteration 481 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:11,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:11,369 INFO L85 PathProgramCache]: Analyzing trace with hash -610354592, now seen corresponding path program 179 times [2022-03-03 17:05:11,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:11,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248528644] [2022-03-03 17:05:11,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:11,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:11,496 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:11,496 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248528644] [2022-03-03 17:05:11,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248528644] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:11,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:11,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:11,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396503309] [2022-03-03 17:05:11,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:11,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:11,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:11,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:11,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:11,497 INFO L87 Difference]: Start difference. First operand 7335 states and 19407 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:12,158 INFO L93 Difference]: Finished difference Result 8726 states and 23020 transitions. [2022-03-03 17:05:12,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:05:12,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:12,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:12,171 INFO L225 Difference]: With dead ends: 8726 [2022-03-03 17:05:12,171 INFO L226 Difference]: Without dead ends: 8161 [2022-03-03 17:05:12,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=649, Invalid=2213, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:05:12,172 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 409 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:12,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 2420 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:12,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2022-03-03 17:05:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 7339. [2022-03-03 17:05:12,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7339 states, 7338 states have (on average 2.6456800218043064) internal successors, (19414), 7338 states have internal predecessors, (19414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7339 states to 7339 states and 19414 transitions. [2022-03-03 17:05:12,263 INFO L78 Accepts]: Start accepts. Automaton has 7339 states and 19414 transitions. Word has length 109 [2022-03-03 17:05:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:12,263 INFO L470 AbstractCegarLoop]: Abstraction has 7339 states and 19414 transitions. [2022-03-03 17:05:12,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7339 states and 19414 transitions. [2022-03-03 17:05:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:12,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:12,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:12,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable480 [2022-03-03 17:05:12,271 INFO L402 AbstractCegarLoop]: === Iteration 482 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:12,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:12,271 INFO L85 PathProgramCache]: Analyzing trace with hash 254076470, now seen corresponding path program 180 times [2022-03-03 17:05:12,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:12,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207303708] [2022-03-03 17:05:12,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:12,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:12,378 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:12,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207303708] [2022-03-03 17:05:12,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207303708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:12,378 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:12,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:12,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899180521] [2022-03-03 17:05:12,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:12,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:12,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:12,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:12,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:12,379 INFO L87 Difference]: Start difference. First operand 7339 states and 19414 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:12,895 INFO L93 Difference]: Finished difference Result 8613 states and 22724 transitions. [2022-03-03 17:05:12,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:12,895 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:12,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:12,905 INFO L225 Difference]: With dead ends: 8613 [2022-03-03 17:05:12,905 INFO L226 Difference]: Without dead ends: 8091 [2022-03-03 17:05:12,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:05:12,906 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 338 mSDsluCounter, 2372 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:12,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [338 Valid, 2571 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8091 states. [2022-03-03 17:05:12,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8091 to 7343. [2022-03-03 17:05:12,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7343 states, 7342 states have (on average 2.645192045764097) internal successors, (19421), 7342 states have internal predecessors, (19421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7343 states to 7343 states and 19421 transitions. [2022-03-03 17:05:12,994 INFO L78 Accepts]: Start accepts. Automaton has 7343 states and 19421 transitions. Word has length 109 [2022-03-03 17:05:12,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:12,994 INFO L470 AbstractCegarLoop]: Abstraction has 7343 states and 19421 transitions. [2022-03-03 17:05:12,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7343 states and 19421 transitions. [2022-03-03 17:05:13,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:13,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:13,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:13,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable481 [2022-03-03 17:05:13,002 INFO L402 AbstractCegarLoop]: === Iteration 483 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:13,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1303838880, now seen corresponding path program 181 times [2022-03-03 17:05:13,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:13,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196336111] [2022-03-03 17:05:13,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:13,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:13,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:13,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196336111] [2022-03-03 17:05:13,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196336111] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:13,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:13,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:13,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296013371] [2022-03-03 17:05:13,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:13,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:13,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:13,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:13,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:13,120 INFO L87 Difference]: Start difference. First operand 7343 states and 19421 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:13,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:13,516 INFO L93 Difference]: Finished difference Result 8473 states and 22360 transitions. [2022-03-03 17:05:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:13,517 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:13,526 INFO L225 Difference]: With dead ends: 8473 [2022-03-03 17:05:13,526 INFO L226 Difference]: Without dead ends: 7994 [2022-03-03 17:05:13,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:13,527 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 266 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:13,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 2653 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:13,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7994 states. [2022-03-03 17:05:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7994 to 7347. [2022-03-03 17:05:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7347 states, 7346 states have (on average 2.6447046011434794) internal successors, (19428), 7346 states have internal predecessors, (19428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:13,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7347 states to 7347 states and 19428 transitions. [2022-03-03 17:05:13,614 INFO L78 Accepts]: Start accepts. Automaton has 7347 states and 19428 transitions. Word has length 109 [2022-03-03 17:05:13,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:13,614 INFO L470 AbstractCegarLoop]: Abstraction has 7347 states and 19428 transitions. [2022-03-03 17:05:13,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:13,614 INFO L276 IsEmpty]: Start isEmpty. Operand 7347 states and 19428 transitions. [2022-03-03 17:05:13,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:13,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:13,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:13,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable482 [2022-03-03 17:05:13,622 INFO L402 AbstractCegarLoop]: === Iteration 484 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:13,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:13,622 INFO L85 PathProgramCache]: Analyzing trace with hash 323684238, now seen corresponding path program 182 times [2022-03-03 17:05:13,622 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:13,622 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996149473] [2022-03-03 17:05:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:13,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:13,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:13,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996149473] [2022-03-03 17:05:13,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996149473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:13,726 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:13,726 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:13,726 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479053623] [2022-03-03 17:05:13,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:13,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:13,726 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:13,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:13,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:13,727 INFO L87 Difference]: Start difference. First operand 7347 states and 19428 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:14,084 INFO L93 Difference]: Finished difference Result 8343 states and 22007 transitions. [2022-03-03 17:05:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:05:14,085 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:14,094 INFO L225 Difference]: With dead ends: 8343 [2022-03-03 17:05:14,094 INFO L226 Difference]: Without dead ends: 7817 [2022-03-03 17:05:14,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:14,094 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 221 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:14,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2618 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:14,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2022-03-03 17:05:14,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7297. [2022-03-03 17:05:14,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.647889254385965) internal successors, (19319), 7296 states have internal predecessors, (19319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19319 transitions. [2022-03-03 17:05:14,187 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19319 transitions. Word has length 109 [2022-03-03 17:05:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:14,187 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19319 transitions. [2022-03-03 17:05:14,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19319 transitions. [2022-03-03 17:05:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:14,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:14,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:14,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable483 [2022-03-03 17:05:14,195 INFO L402 AbstractCegarLoop]: === Iteration 485 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:14,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:14,195 INFO L85 PathProgramCache]: Analyzing trace with hash -744472904, now seen corresponding path program 183 times [2022-03-03 17:05:14,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:14,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911389371] [2022-03-03 17:05:14,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:14,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:14,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:14,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:14,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911389371] [2022-03-03 17:05:14,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911389371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:14,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:14,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:14,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056880636] [2022-03-03 17:05:14,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:14,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:14,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:14,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:14,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:14,307 INFO L87 Difference]: Start difference. First operand 7297 states and 19319 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:14,698 INFO L93 Difference]: Finished difference Result 8551 states and 22599 transitions. [2022-03-03 17:05:14,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:14,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:14,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:14,708 INFO L225 Difference]: With dead ends: 8551 [2022-03-03 17:05:14,708 INFO L226 Difference]: Without dead ends: 8072 [2022-03-03 17:05:14,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=888, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:05:14,709 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 204 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:14,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 2391 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:14,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8072 states. [2022-03-03 17:05:14,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8072 to 7321. [2022-03-03 17:05:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6476775956284153) internal successors, (19381), 7320 states have internal predecessors, (19381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19381 transitions. [2022-03-03 17:05:14,837 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19381 transitions. Word has length 109 [2022-03-03 17:05:14,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:14,837 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19381 transitions. [2022-03-03 17:05:14,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,837 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19381 transitions. [2022-03-03 17:05:14,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:14,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:14,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:14,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable484 [2022-03-03 17:05:14,844 INFO L402 AbstractCegarLoop]: === Iteration 486 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash 883050214, now seen corresponding path program 184 times [2022-03-03 17:05:14,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:14,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893653988] [2022-03-03 17:05:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:14,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:14,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:14,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893653988] [2022-03-03 17:05:14,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893653988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:14,943 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:14,943 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:14,943 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664779721] [2022-03-03 17:05:14,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:14,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:14,944 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:14,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:14,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:14,944 INFO L87 Difference]: Start difference. First operand 7321 states and 19381 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:15,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:15,349 INFO L93 Difference]: Finished difference Result 8517 states and 22510 transitions. [2022-03-03 17:05:15,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:15,350 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:15,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:15,359 INFO L225 Difference]: With dead ends: 8517 [2022-03-03 17:05:15,359 INFO L226 Difference]: Without dead ends: 8037 [2022-03-03 17:05:15,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=1153, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:15,360 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 204 mSDsluCounter, 2533 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:15,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 2729 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:15,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8037 states. [2022-03-03 17:05:15,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8037 to 7317. [2022-03-03 17:05:15,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6476216511755055) internal successors, (19370), 7316 states have internal predecessors, (19370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:15,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19370 transitions. [2022-03-03 17:05:15,443 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19370 transitions. Word has length 109 [2022-03-03 17:05:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:15,443 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19370 transitions. [2022-03-03 17:05:15,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:15,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19370 transitions. [2022-03-03 17:05:15,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:15,450 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:15,450 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:15,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable485 [2022-03-03 17:05:15,450 INFO L402 AbstractCegarLoop]: === Iteration 487 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:15,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:15,450 INFO L85 PathProgramCache]: Analyzing trace with hash -238007126, now seen corresponding path program 185 times [2022-03-03 17:05:15,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:15,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825919698] [2022-03-03 17:05:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:15,554 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:15,554 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825919698] [2022-03-03 17:05:15,554 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825919698] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:15,554 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:15,555 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:15,555 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869663784] [2022-03-03 17:05:15,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:15,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:15,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:15,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:15,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:15,555 INFO L87 Difference]: Start difference. First operand 7317 states and 19370 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:16,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:16,061 INFO L93 Difference]: Finished difference Result 8553 states and 22605 transitions. [2022-03-03 17:05:16,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:16,062 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:16,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:16,072 INFO L225 Difference]: With dead ends: 8553 [2022-03-03 17:05:16,072 INFO L226 Difference]: Without dead ends: 8033 [2022-03-03 17:05:16,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1678, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:05:16,073 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 270 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:16,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2545 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:16,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8033 states. [2022-03-03 17:05:16,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8033 to 7313. [2022-03-03 17:05:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.647565645514223) internal successors, (19359), 7312 states have internal predecessors, (19359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19359 transitions. [2022-03-03 17:05:16,158 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19359 transitions. Word has length 109 [2022-03-03 17:05:16,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:16,159 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19359 transitions. [2022-03-03 17:05:16,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:16,159 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19359 transitions. [2022-03-03 17:05:16,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:16,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:16,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:16,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable486 [2022-03-03 17:05:16,166 INFO L402 AbstractCegarLoop]: === Iteration 488 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:16,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:16,167 INFO L85 PathProgramCache]: Analyzing trace with hash -763142662, now seen corresponding path program 186 times [2022-03-03 17:05:16,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:16,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525790143] [2022-03-03 17:05:16,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:16,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:16,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:16,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525790143] [2022-03-03 17:05:16,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525790143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:16,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:16,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:16,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57788471] [2022-03-03 17:05:16,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:16,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:16,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:16,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:16,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:16,274 INFO L87 Difference]: Start difference. First operand 7313 states and 19359 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:16,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:16,919 INFO L93 Difference]: Finished difference Result 8781 states and 23204 transitions. [2022-03-03 17:05:16,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:05:16,919 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:16,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:16,932 INFO L225 Difference]: With dead ends: 8781 [2022-03-03 17:05:16,932 INFO L226 Difference]: Without dead ends: 8221 [2022-03-03 17:05:16,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=668, Invalid=2194, Unknown=0, NotChecked=0, Total=2862 [2022-03-03 17:05:16,933 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 363 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:16,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 2459 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:16,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8221 states. [2022-03-03 17:05:17,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8221 to 7309. [2022-03-03 17:05:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6475095785440614) internal successors, (19348), 7308 states have internal predecessors, (19348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:17,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19348 transitions. [2022-03-03 17:05:17,032 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19348 transitions. Word has length 109 [2022-03-03 17:05:17,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:17,033 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19348 transitions. [2022-03-03 17:05:17,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:17,033 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19348 transitions. [2022-03-03 17:05:17,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:17,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:17,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:17,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable487 [2022-03-03 17:05:17,041 INFO L402 AbstractCegarLoop]: === Iteration 489 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:17,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:17,041 INFO L85 PathProgramCache]: Analyzing trace with hash -953456066, now seen corresponding path program 187 times [2022-03-03 17:05:17,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:17,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174911579] [2022-03-03 17:05:17,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:17,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:17,151 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174911579] [2022-03-03 17:05:17,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174911579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:17,151 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:17,151 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:17,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545688707] [2022-03-03 17:05:17,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:17,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:17,151 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:17,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:17,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:17,151 INFO L87 Difference]: Start difference. First operand 7309 states and 19348 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:17,553 INFO L93 Difference]: Finished difference Result 8527 states and 22529 transitions. [2022-03-03 17:05:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:17,554 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:17,564 INFO L225 Difference]: With dead ends: 8527 [2022-03-03 17:05:17,565 INFO L226 Difference]: Without dead ends: 8048 [2022-03-03 17:05:17,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:17,565 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 221 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:17,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 2445 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:17,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8048 states. [2022-03-03 17:05:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8048 to 7321. [2022-03-03 17:05:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:17,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-03-03 17:05:17,654 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-03-03 17:05:17,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:17,655 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-03-03 17:05:17,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:17,655 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-03-03 17:05:17,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:17,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:17,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:17,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable488 [2022-03-03 17:05:17,662 INFO L402 AbstractCegarLoop]: === Iteration 490 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:17,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:17,663 INFO L85 PathProgramCache]: Analyzing trace with hash 674067052, now seen corresponding path program 188 times [2022-03-03 17:05:17,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:17,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904893987] [2022-03-03 17:05:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:17,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:17,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:17,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904893987] [2022-03-03 17:05:17,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904893987] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:17,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:17,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:17,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116715095] [2022-03-03 17:05:17,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:17,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:17,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:17,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:17,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:17,767 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:18,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:18,222 INFO L93 Difference]: Finished difference Result 8485 states and 22418 transitions. [2022-03-03 17:05:18,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:18,223 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:18,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:18,233 INFO L225 Difference]: With dead ends: 8485 [2022-03-03 17:05:18,233 INFO L226 Difference]: Without dead ends: 8005 [2022-03-03 17:05:18,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1148, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:18,233 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 218 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 2450 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:18,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 2450 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8005 states. [2022-03-03 17:05:18,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8005 to 7317. [2022-03-03 17:05:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-03 17:05:18,318 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-03 17:05:18,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:18,319 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-03 17:05:18,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:18,319 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-03 17:05:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:18,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:18,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:18,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable489 [2022-03-03 17:05:18,326 INFO L402 AbstractCegarLoop]: === Iteration 491 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:18,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash -446990288, now seen corresponding path program 189 times [2022-03-03 17:05:18,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:18,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421654] [2022-03-03 17:05:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:18,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:18,428 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:18,428 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421654] [2022-03-03 17:05:18,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:18,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:18,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:18,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966191838] [2022-03-03 17:05:18,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:18,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:18,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:18,429 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:18,937 INFO L93 Difference]: Finished difference Result 8653 states and 22860 transitions. [2022-03-03 17:05:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:18,937 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:18,949 INFO L225 Difference]: With dead ends: 8653 [2022-03-03 17:05:18,949 INFO L226 Difference]: Without dead ends: 8133 [2022-03-03 17:05:18,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:05:18,950 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 285 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:18,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 2657 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:18,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2022-03-03 17:05:19,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 7313. [2022-03-03 17:05:19,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:19,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-03 17:05:19,045 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-03 17:05:19,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:19,045 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-03 17:05:19,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-03 17:05:19,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:19,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:19,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:19,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable490 [2022-03-03 17:05:19,053 INFO L402 AbstractCegarLoop]: === Iteration 492 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash -374360564, now seen corresponding path program 190 times [2022-03-03 17:05:19,053 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:19,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620300908] [2022-03-03 17:05:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:19,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:19,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:19,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620300908] [2022-03-03 17:05:19,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620300908] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:19,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:19,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:19,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491474535] [2022-03-03 17:05:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:19,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:19,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:19,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:19,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:19,160 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:19,645 INFO L93 Difference]: Finished difference Result 8571 states and 22621 transitions. [2022-03-03 17:05:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:05:19,646 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:19,657 INFO L225 Difference]: With dead ends: 8571 [2022-03-03 17:05:19,657 INFO L226 Difference]: Without dead ends: 8049 [2022-03-03 17:05:19,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-03-03 17:05:19,657 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 286 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:19,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 1939 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:19,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8049 states. [2022-03-03 17:05:19,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8049 to 7317. [2022-03-03 17:05:19,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:19,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-03 17:05:19,764 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-03 17:05:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:19,764 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-03 17:05:19,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:19,765 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-03 17:05:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:19,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:19,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:19,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable491 [2022-03-03 17:05:19,773 INFO L402 AbstractCegarLoop]: === Iteration 493 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:19,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1932275914, now seen corresponding path program 191 times [2022-03-03 17:05:19,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:19,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602899669] [2022-03-03 17:05:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:19,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:19,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:19,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:19,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602899669] [2022-03-03 17:05:19,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602899669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:19,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:19,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:19,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056064299] [2022-03-03 17:05:19,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:19,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:19,882 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:19,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:19,882 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:20,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:20,291 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-03-03 17:05:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:20,291 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:20,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:20,303 INFO L225 Difference]: With dead ends: 8471 [2022-03-03 17:05:20,303 INFO L226 Difference]: Without dead ends: 7992 [2022-03-03 17:05:20,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=996, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:20,304 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 227 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:20,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 1906 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:20,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-03-03 17:05:20,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-03-03 17:05:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6460382513661203) internal successors, (19369), 7320 states have internal predecessors, (19369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:20,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19369 transitions. [2022-03-03 17:05:20,413 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19369 transitions. Word has length 109 [2022-03-03 17:05:20,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:20,414 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19369 transitions. [2022-03-03 17:05:20,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:20,414 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19369 transitions. [2022-03-03 17:05:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:20,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:20,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:20,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable492 [2022-03-03 17:05:20,423 INFO L402 AbstractCegarLoop]: === Iteration 494 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:20,423 INFO L85 PathProgramCache]: Analyzing trace with hash -304752796, now seen corresponding path program 192 times [2022-03-03 17:05:20,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:20,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393168198] [2022-03-03 17:05:20,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:20,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:20,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:20,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393168198] [2022-03-03 17:05:20,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393168198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:20,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:20,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:20,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8907070] [2022-03-03 17:05:20,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:20,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:20,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:20,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:20,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:20,537 INFO L87 Difference]: Start difference. First operand 7321 states and 19369 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:20,983 INFO L93 Difference]: Finished difference Result 8421 states and 22234 transitions. [2022-03-03 17:05:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:20,984 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:20,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:20,995 INFO L225 Difference]: With dead ends: 8421 [2022-03-03 17:05:20,995 INFO L226 Difference]: Without dead ends: 7929 [2022-03-03 17:05:20,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:20,995 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 196 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:20,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2601 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:21,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2022-03-03 17:05:21,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 7305. [2022-03-03 17:05:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6474534501642935) internal successors, (19337), 7304 states have internal predecessors, (19337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:21,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19337 transitions. [2022-03-03 17:05:21,102 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19337 transitions. Word has length 109 [2022-03-03 17:05:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:21,102 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19337 transitions. [2022-03-03 17:05:21,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19337 transitions. [2022-03-03 17:05:21,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:21,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:21,110 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:21,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable493 [2022-03-03 17:05:21,110 INFO L402 AbstractCegarLoop]: === Iteration 495 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:21,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:21,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1565037480, now seen corresponding path program 193 times [2022-03-03 17:05:21,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:21,111 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785018470] [2022-03-03 17:05:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:21,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:21,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:21,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785018470] [2022-03-03 17:05:21,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785018470] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:21,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:21,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:21,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147034887] [2022-03-03 17:05:21,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:21,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:21,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:21,217 INFO L87 Difference]: Start difference. First operand 7305 states and 19337 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:21,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:21,578 INFO L93 Difference]: Finished difference Result 8363 states and 22078 transitions. [2022-03-03 17:05:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:05:21,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:21,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:21,589 INFO L225 Difference]: With dead ends: 8363 [2022-03-03 17:05:21,589 INFO L226 Difference]: Without dead ends: 7884 [2022-03-03 17:05:21,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=289, Invalid=833, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 17:05:21,590 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 213 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2032 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:21,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 2032 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:21,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7884 states. [2022-03-03 17:05:21,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7884 to 7321. [2022-03-03 17:05:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-03-03 17:05:21,696 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-03-03 17:05:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:21,696 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-03-03 17:05:21,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-03-03 17:05:21,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:21,704 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:21,704 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:21,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable494 [2022-03-03 17:05:21,705 INFO L402 AbstractCegarLoop]: === Iteration 496 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:21,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash 62485638, now seen corresponding path program 194 times [2022-03-03 17:05:21,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:21,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702666983] [2022-03-03 17:05:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:21,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:21,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:21,809 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:21,809 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702666983] [2022-03-03 17:05:21,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702666983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:21,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:21,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:21,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254949373] [2022-03-03 17:05:21,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:21,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:21,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:21,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:21,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:21,810 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:22,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:22,215 INFO L93 Difference]: Finished difference Result 8333 states and 22000 transitions. [2022-03-03 17:05:22,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:22,215 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:22,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:22,225 INFO L225 Difference]: With dead ends: 8333 [2022-03-03 17:05:22,225 INFO L226 Difference]: Without dead ends: 7853 [2022-03-03 17:05:22,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:22,225 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 214 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 2335 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:22,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 2335 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:22,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2022-03-03 17:05:22,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7317. [2022-03-03 17:05:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-03 17:05:22,320 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-03 17:05:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:22,320 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-03 17:05:22,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-03 17:05:22,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:22,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:22,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:22,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable495 [2022-03-03 17:05:22,329 INFO L402 AbstractCegarLoop]: === Iteration 497 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:22,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1058571702, now seen corresponding path program 195 times [2022-03-03 17:05:22,329 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:22,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464607323] [2022-03-03 17:05:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:22,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:22,435 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:22,435 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464607323] [2022-03-03 17:05:22,435 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464607323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:22,435 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:22,435 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:22,435 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362809621] [2022-03-03 17:05:22,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:22,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:22,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:22,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:22,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:22,436 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:22,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:22,985 INFO L93 Difference]: Finished difference Result 8369 states and 22095 transitions. [2022-03-03 17:05:22,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:22,986 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:22,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:22,996 INFO L225 Difference]: With dead ends: 8369 [2022-03-03 17:05:22,996 INFO L226 Difference]: Without dead ends: 7849 [2022-03-03 17:05:22,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:05:22,997 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 262 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:22,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 2694 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:23,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7849 states. [2022-03-03 17:05:23,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7849 to 7313. [2022-03-03 17:05:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-03 17:05:23,100 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-03 17:05:23,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:23,100 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-03 17:05:23,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-03 17:05:23,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:23,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:23,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:23,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable496 [2022-03-03 17:05:23,108 INFO L402 AbstractCegarLoop]: === Iteration 498 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:23,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:23,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1583707238, now seen corresponding path program 196 times [2022-03-03 17:05:23,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:23,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626026404] [2022-03-03 17:05:23,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:23,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:23,209 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:23,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626026404] [2022-03-03 17:05:23,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626026404] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:23,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:23,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:23,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33119812] [2022-03-03 17:05:23,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:23,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:23,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:23,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:23,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:23,210 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:23,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:23,816 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-03-03 17:05:23,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:05:23,816 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:23,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:23,825 INFO L225 Difference]: With dead ends: 8405 [2022-03-03 17:05:23,826 INFO L226 Difference]: Without dead ends: 7845 [2022-03-03 17:05:23,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=675, Invalid=2295, Unknown=0, NotChecked=0, Total=2970 [2022-03-03 17:05:23,826 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 326 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:23,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 2634 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7845 states. [2022-03-03 17:05:23,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7845 to 7309. [2022-03-03 17:05:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:23,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-03-03 17:05:23,911 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-03-03 17:05:23,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:23,911 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-03-03 17:05:23,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:23,911 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-03-03 17:05:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:23,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:23,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:23,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable497 [2022-03-03 17:05:23,919 INFO L402 AbstractCegarLoop]: === Iteration 499 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:23,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:23,919 INFO L85 PathProgramCache]: Analyzing trace with hash -931413972, now seen corresponding path program 197 times [2022-03-03 17:05:23,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:23,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265798164] [2022-03-03 17:05:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:23,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:24,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:24,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265798164] [2022-03-03 17:05:24,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265798164] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:24,018 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:24,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:24,018 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484196581] [2022-03-03 17:05:24,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:24,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:24,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:24,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:24,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:24,019 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:24,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:24,652 INFO L93 Difference]: Finished difference Result 8373 states and 22102 transitions. [2022-03-03 17:05:24,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:05:24,652 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:24,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:24,662 INFO L225 Difference]: With dead ends: 8373 [2022-03-03 17:05:24,662 INFO L226 Difference]: Without dead ends: 7769 [2022-03-03 17:05:24,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=796, Invalid=2510, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:05:24,662 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 386 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:24,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 2469 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states. [2022-03-03 17:05:24,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 7301. [2022-03-03 17:05:24,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.647397260273973) internal successors, (19326), 7300 states have internal predecessors, (19326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:24,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19326 transitions. [2022-03-03 17:05:24,748 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19326 transitions. Word has length 109 [2022-03-03 17:05:24,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:24,748 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19326 transitions. [2022-03-03 17:05:24,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:24,748 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19326 transitions. [2022-03-03 17:05:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:24,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:24,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:24,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable498 [2022-03-03 17:05:24,755 INFO L402 AbstractCegarLoop]: === Iteration 500 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:24,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:24,756 INFO L85 PathProgramCache]: Analyzing trace with hash 698429018, now seen corresponding path program 198 times [2022-03-03 17:05:24,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:24,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020134235] [2022-03-03 17:05:24,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:24,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:24,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:24,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020134235] [2022-03-03 17:05:24,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020134235] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:24,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:24,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:24,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070779034] [2022-03-03 17:05:24,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:24,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:24,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:24,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:24,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:24,867 INFO L87 Difference]: Start difference. First operand 7301 states and 19326 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:25,254 INFO L93 Difference]: Finished difference Result 8503 states and 22467 transitions. [2022-03-03 17:05:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:25,264 INFO L225 Difference]: With dead ends: 8503 [2022-03-03 17:05:25,264 INFO L226 Difference]: Without dead ends: 8024 [2022-03-03 17:05:25,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=894, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:05:25,264 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 241 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2194 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:25,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2194 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:25,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8024 states. [2022-03-03 17:05:25,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8024 to 7321. [2022-03-03 17:05:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6471311475409838) internal successors, (19377), 7320 states have internal predecessors, (19377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19377 transitions. [2022-03-03 17:05:25,351 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19377 transitions. Word has length 109 [2022-03-03 17:05:25,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:25,351 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19377 transitions. [2022-03-03 17:05:25,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:25,352 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19377 transitions. [2022-03-03 17:05:25,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:25,359 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:25,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:25,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable499 [2022-03-03 17:05:25,359 INFO L402 AbstractCegarLoop]: === Iteration 501 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:25,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1969015160, now seen corresponding path program 199 times [2022-03-03 17:05:25,360 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:25,360 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274297182] [2022-03-03 17:05:25,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:25,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:25,465 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:25,465 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274297182] [2022-03-03 17:05:25,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274297182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:25,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:25,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:25,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988542358] [2022-03-03 17:05:25,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:25,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:25,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:25,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:25,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:25,466 INFO L87 Difference]: Start difference. First operand 7321 states and 19377 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:25,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:25,900 INFO L93 Difference]: Finished difference Result 8469 states and 22378 transitions. [2022-03-03 17:05:25,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:25,900 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:25,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:25,912 INFO L225 Difference]: With dead ends: 8469 [2022-03-03 17:05:25,912 INFO L226 Difference]: Without dead ends: 7989 [2022-03-03 17:05:25,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=1149, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:25,913 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 216 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:25,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2679 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:25,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2022-03-03 17:05:26,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7317. [2022-03-03 17:05:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-03 17:05:26,022 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-03 17:05:26,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:26,022 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-03 17:05:26,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-03 17:05:26,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:26,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:26,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:26,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable500 [2022-03-03 17:05:26,031 INFO L402 AbstractCegarLoop]: === Iteration 502 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:26,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:26,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1204894796, now seen corresponding path program 200 times [2022-03-03 17:05:26,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:26,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763286538] [2022-03-03 17:05:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:26,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:26,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:26,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763286538] [2022-03-03 17:05:26,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763286538] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:26,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:26,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:26,138 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936891785] [2022-03-03 17:05:26,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:26,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:26,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:26,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:26,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:26,138 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:26,684 INFO L93 Difference]: Finished difference Result 8505 states and 22473 transitions. [2022-03-03 17:05:26,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:26,684 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:26,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:26,696 INFO L225 Difference]: With dead ends: 8505 [2022-03-03 17:05:26,696 INFO L226 Difference]: Without dead ends: 7985 [2022-03-03 17:05:26,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=493, Invalid=1669, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:05:26,697 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 289 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:26,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 2626 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2022-03-03 17:05:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 7313. [2022-03-03 17:05:26,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-03 17:05:26,823 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-03 17:05:26,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:26,823 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-03 17:05:26,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-03 17:05:26,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:26,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:26,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:26,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable501 [2022-03-03 17:05:26,831 INFO L402 AbstractCegarLoop]: === Iteration 503 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:26,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:26,832 INFO L85 PathProgramCache]: Analyzing trace with hash 679759260, now seen corresponding path program 201 times [2022-03-03 17:05:26,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:26,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211378878] [2022-03-03 17:05:26,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:26,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:26,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:26,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:26,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211378878] [2022-03-03 17:05:26,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211378878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:26,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:26,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:26,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782955431] [2022-03-03 17:05:26,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:26,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:26,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:26,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:26,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:26,937 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:27,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:27,523 INFO L93 Difference]: Finished difference Result 8649 states and 22841 transitions. [2022-03-03 17:05:27,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:05:27,523 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:27,533 INFO L225 Difference]: With dead ends: 8649 [2022-03-03 17:05:27,533 INFO L226 Difference]: Without dead ends: 8089 [2022-03-03 17:05:27,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=661, Invalid=2095, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:05:27,534 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 380 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:27,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [380 Valid, 2479 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:27,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8089 states. [2022-03-03 17:05:27,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8089 to 7309. [2022-03-03 17:05:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:27,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-03-03 17:05:27,625 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-03-03 17:05:27,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:27,625 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-03-03 17:05:27,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:27,625 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-03-03 17:05:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:27,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:27,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:27,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable502 [2022-03-03 17:05:27,633 INFO L402 AbstractCegarLoop]: === Iteration 504 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:27,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:27,633 INFO L85 PathProgramCache]: Analyzing trace with hash 489445856, now seen corresponding path program 202 times [2022-03-03 17:05:27,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:27,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833442770] [2022-03-03 17:05:27,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:27,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:27,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:27,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833442770] [2022-03-03 17:05:27,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833442770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:27,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:27,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:27,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926190564] [2022-03-03 17:05:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:27,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:27,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:27,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:27,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:27,757 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:28,168 INFO L93 Difference]: Finished difference Result 8575 states and 22661 transitions. [2022-03-03 17:05:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:28,169 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:28,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:28,180 INFO L225 Difference]: With dead ends: 8575 [2022-03-03 17:05:28,180 INFO L226 Difference]: Without dead ends: 8096 [2022-03-03 17:05:28,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:05:28,181 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 232 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:28,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2558 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:28,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2022-03-03 17:05:28,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 7321. [2022-03-03 17:05:28,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-03-03 17:05:28,291 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-03-03 17:05:28,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:28,291 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-03-03 17:05:28,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-03-03 17:05:28,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:28,300 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:28,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:28,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable503 [2022-03-03 17:05:28,300 INFO L402 AbstractCegarLoop]: === Iteration 505 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:28,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:28,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2116968974, now seen corresponding path program 203 times [2022-03-03 17:05:28,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:28,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034093236] [2022-03-03 17:05:28,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:28,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:28,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:28,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034093236] [2022-03-03 17:05:28,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034093236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:28,405 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:28,405 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:28,405 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091720235] [2022-03-03 17:05:28,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:28,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:28,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:28,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:28,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:28,405 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:28,826 INFO L93 Difference]: Finished difference Result 8533 states and 22550 transitions. [2022-03-03 17:05:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:28,826 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:28,838 INFO L225 Difference]: With dead ends: 8533 [2022-03-03 17:05:28,838 INFO L226 Difference]: Without dead ends: 8053 [2022-03-03 17:05:28,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=338, Invalid=1144, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:28,839 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 237 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:28,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2416 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2022-03-03 17:05:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 7317. [2022-03-03 17:05:28,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-03 17:05:28,943 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-03 17:05:28,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:28,944 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-03 17:05:28,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,944 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-03 17:05:28,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:28,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:28,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:28,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable504 [2022-03-03 17:05:28,952 INFO L402 AbstractCegarLoop]: === Iteration 506 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:28,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:28,952 INFO L85 PathProgramCache]: Analyzing trace with hash 995911634, now seen corresponding path program 204 times [2022-03-03 17:05:28,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:28,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418357198] [2022-03-03 17:05:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:28,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:29,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:29,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418357198] [2022-03-03 17:05:29,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418357198] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:29,056 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:29,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:29,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308712659] [2022-03-03 17:05:29,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:29,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:29,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:29,056 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:29,553 INFO L93 Difference]: Finished difference Result 8661 states and 22882 transitions. [2022-03-03 17:05:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:29,565 INFO L225 Difference]: With dead ends: 8661 [2022-03-03 17:05:29,565 INFO L226 Difference]: Without dead ends: 8141 [2022-03-03 17:05:29,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1589, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:05:29,565 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 311 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:29,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [311 Valid, 2476 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-03-03 17:05:29,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7313. [2022-03-03 17:05:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:29,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-03 17:05:29,663 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-03 17:05:29,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:29,663 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-03 17:05:29,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:29,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-03 17:05:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:29,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:29,670 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:29,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable505 [2022-03-03 17:05:29,670 INFO L402 AbstractCegarLoop]: === Iteration 507 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:29,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1068541358, now seen corresponding path program 205 times [2022-03-03 17:05:29,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:29,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57428340] [2022-03-03 17:05:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:29,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:29,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:29,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57428340] [2022-03-03 17:05:29,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57428340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:29,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:29,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:29,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826467520] [2022-03-03 17:05:29,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:29,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:29,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:29,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:29,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:29,778 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:30,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:30,276 INFO L93 Difference]: Finished difference Result 8663 states and 22874 transitions. [2022-03-03 17:05:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:05:30,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:30,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:30,287 INFO L225 Difference]: With dead ends: 8663 [2022-03-03 17:05:30,287 INFO L226 Difference]: Without dead ends: 8141 [2022-03-03 17:05:30,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=449, Invalid=1357, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:05:30,287 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 290 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:30,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [290 Valid, 2443 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2022-03-03 17:05:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 7317. [2022-03-03 17:05:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-03-03 17:05:30,388 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-03-03 17:05:30,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:30,388 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-03-03 17:05:30,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:30,388 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-03-03 17:05:30,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:30,396 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:30,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:30,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable506 [2022-03-03 17:05:30,396 INFO L402 AbstractCegarLoop]: === Iteration 508 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:30,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash -489373992, now seen corresponding path program 206 times [2022-03-03 17:05:30,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:30,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936484854] [2022-03-03 17:05:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:30,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:30,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:30,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936484854] [2022-03-03 17:05:30,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936484854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:30,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:30,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:30,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679057752] [2022-03-03 17:05:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:30,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:30,507 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:30,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:30,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:30,508 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:30,936 INFO L93 Difference]: Finished difference Result 8515 states and 22488 transitions. [2022-03-03 17:05:30,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:30,936 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:30,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:30,947 INFO L225 Difference]: With dead ends: 8515 [2022-03-03 17:05:30,947 INFO L226 Difference]: Without dead ends: 8036 [2022-03-03 17:05:30,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:30,947 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 219 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:30,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2374 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:30,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-03-03 17:05:31,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7321. [2022-03-03 17:05:31,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-03-03 17:05:31,060 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-03-03 17:05:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:31,060 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-03-03 17:05:31,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-03-03 17:05:31,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:31,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:31,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:31,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable507 [2022-03-03 17:05:31,070 INFO L402 AbstractCegarLoop]: === Iteration 509 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:31,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:31,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1138149126, now seen corresponding path program 207 times [2022-03-03 17:05:31,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:31,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686813589] [2022-03-03 17:05:31,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:31,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:31,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:31,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:31,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686813589] [2022-03-03 17:05:31,175 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686813589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:31,175 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:31,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:31,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024299816] [2022-03-03 17:05:31,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:31,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:31,175 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:31,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:31,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:31,175 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:31,578 INFO L93 Difference]: Finished difference Result 8433 states and 22267 transitions. [2022-03-03 17:05:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:31,578 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:31,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:31,588 INFO L225 Difference]: With dead ends: 8433 [2022-03-03 17:05:31,588 INFO L226 Difference]: Without dead ends: 7941 [2022-03-03 17:05:31,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1086, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:31,588 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 225 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:31,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2396 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7941 states. [2022-03-03 17:05:31,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7941 to 7305. [2022-03-03 17:05:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-03-03 17:05:31,680 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-03-03 17:05:31,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:31,680 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-03-03 17:05:31,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,680 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-03-03 17:05:31,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:31,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:31,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:31,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable508 [2022-03-03 17:05:31,688 INFO L402 AbstractCegarLoop]: === Iteration 510 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:31,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:31,688 INFO L85 PathProgramCache]: Analyzing trace with hash 441409752, now seen corresponding path program 208 times [2022-03-03 17:05:31,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:31,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433324509] [2022-03-03 17:05:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:31,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:31,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:31,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433324509] [2022-03-03 17:05:31,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433324509] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:31,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:31,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:31,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438305097] [2022-03-03 17:05:31,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:31,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:31,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:31,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:31,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:31,805 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:32,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:32,236 INFO L93 Difference]: Finished difference Result 8471 states and 22375 transitions. [2022-03-03 17:05:32,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:32,236 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:32,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:32,246 INFO L225 Difference]: With dead ends: 8471 [2022-03-03 17:05:32,246 INFO L226 Difference]: Without dead ends: 7992 [2022-03-03 17:05:32,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=307, Invalid=953, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:05:32,247 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 219 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:32,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 2687 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-03-03 17:05:32,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-03-03 17:05:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.646584699453552) internal successors, (19373), 7320 states have internal predecessors, (19373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19373 transitions. [2022-03-03 17:05:32,336 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19373 transitions. Word has length 109 [2022-03-03 17:05:32,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:32,336 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19373 transitions. [2022-03-03 17:05:32,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:32,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19373 transitions. [2022-03-03 17:05:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:32,344 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:32,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:32,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable509 [2022-03-03 17:05:32,344 INFO L402 AbstractCegarLoop]: === Iteration 511 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2068932870, now seen corresponding path program 209 times [2022-03-03 17:05:32,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:32,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411742652] [2022-03-03 17:05:32,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:32,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:32,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:32,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411742652] [2022-03-03 17:05:32,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411742652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:32,461 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:32,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:32,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350615048] [2022-03-03 17:05:32,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:32,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:32,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:32,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:32,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:32,462 INFO L87 Difference]: Start difference. First operand 7321 states and 19373 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:32,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:32,904 INFO L93 Difference]: Finished difference Result 8429 states and 22264 transitions. [2022-03-03 17:05:32,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:32,905 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:32,915 INFO L225 Difference]: With dead ends: 8429 [2022-03-03 17:05:32,915 INFO L226 Difference]: Without dead ends: 7949 [2022-03-03 17:05:32,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:32,915 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 208 mSDsluCounter, 2482 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2672 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:32,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2672 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:32,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2022-03-03 17:05:32,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7317. [2022-03-03 17:05:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:33,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-03 17:05:33,005 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-03 17:05:33,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:33,005 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-03 17:05:33,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-03 17:05:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:33,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:33,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:33,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable510 [2022-03-03 17:05:33,012 INFO L402 AbstractCegarLoop]: === Iteration 512 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:33,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:33,012 INFO L85 PathProgramCache]: Analyzing trace with hash 947875530, now seen corresponding path program 210 times [2022-03-03 17:05:33,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:33,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652268579] [2022-03-03 17:05:33,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:33,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:33,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:33,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652268579] [2022-03-03 17:05:33,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652268579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:33,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:33,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:33,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115257619] [2022-03-03 17:05:33,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:33,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:33,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:33,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:33,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:33,120 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:33,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:33,594 INFO L93 Difference]: Finished difference Result 8537 states and 22541 transitions. [2022-03-03 17:05:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:05:33,594 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:33,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:33,603 INFO L225 Difference]: With dead ends: 8537 [2022-03-03 17:05:33,603 INFO L226 Difference]: Without dead ends: 8017 [2022-03-03 17:05:33,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:05:33,604 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 283 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:33,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 2728 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:33,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2022-03-03 17:05:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7313. [2022-03-03 17:05:33,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:33,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-03 17:05:33,684 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-03 17:05:33,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:33,684 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-03 17:05:33,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-03 17:05:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:33,691 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:33,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:33,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable511 [2022-03-03 17:05:33,691 INFO L402 AbstractCegarLoop]: === Iteration 513 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:33,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:33,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1020505254, now seen corresponding path program 211 times [2022-03-03 17:05:33,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:33,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493875415] [2022-03-03 17:05:33,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:33,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:33,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:33,798 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:33,798 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493875415] [2022-03-03 17:05:33,798 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493875415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:33,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:33,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:33,799 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923568850] [2022-03-03 17:05:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:33,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:33,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:33,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:33,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:33,799 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:34,312 INFO L93 Difference]: Finished difference Result 8635 states and 22797 transitions. [2022-03-03 17:05:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:34,313 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:34,322 INFO L225 Difference]: With dead ends: 8635 [2022-03-03 17:05:34,322 INFO L226 Difference]: Without dead ends: 8113 [2022-03-03 17:05:34,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=460, Invalid=1432, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:05:34,323 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 312 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:34,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 2409 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:34,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8113 states. [2022-03-03 17:05:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8113 to 7317. [2022-03-03 17:05:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.645981410606889) internal successors, (19358), 7316 states have internal predecessors, (19358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19358 transitions. [2022-03-03 17:05:34,413 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19358 transitions. Word has length 109 [2022-03-03 17:05:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:34,413 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19358 transitions. [2022-03-03 17:05:34,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19358 transitions. [2022-03-03 17:05:34,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:34,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:34,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:34,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable512 [2022-03-03 17:05:34,420 INFO L402 AbstractCegarLoop]: === Iteration 514 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:34,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:34,421 INFO L85 PathProgramCache]: Analyzing trace with hash -537410096, now seen corresponding path program 212 times [2022-03-03 17:05:34,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:34,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259347857] [2022-03-03 17:05:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:34,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:34,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:34,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:34,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259347857] [2022-03-03 17:05:34,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259347857] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:34,529 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:34,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:34,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667472102] [2022-03-03 17:05:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:34,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:34,529 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:34,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:34,530 INFO L87 Difference]: Start difference. First operand 7317 states and 19358 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:34,941 INFO L93 Difference]: Finished difference Result 8471 states and 22367 transitions. [2022-03-03 17:05:34,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:34,941 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:34,952 INFO L225 Difference]: With dead ends: 8471 [2022-03-03 17:05:34,952 INFO L226 Difference]: Without dead ends: 7992 [2022-03-03 17:05:34,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:34,952 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:34,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 2387 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2022-03-03 17:05:35,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 7321. [2022-03-03 17:05:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6454918032786887) internal successors, (19365), 7320 states have internal predecessors, (19365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19365 transitions. [2022-03-03 17:05:35,054 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19365 transitions. Word has length 109 [2022-03-03 17:05:35,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:35,054 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19365 transitions. [2022-03-03 17:05:35,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:35,054 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19365 transitions. [2022-03-03 17:05:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:35,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:35,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:35,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable513 [2022-03-03 17:05:35,062 INFO L402 AbstractCegarLoop]: === Iteration 515 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:35,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:35,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1090113022, now seen corresponding path program 213 times [2022-03-03 17:05:35,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:35,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085108205] [2022-03-03 17:05:35,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:35,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:35,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:35,168 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:35,168 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085108205] [2022-03-03 17:05:35,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085108205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:35,168 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:35,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:35,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350235985] [2022-03-03 17:05:35,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:35,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:35,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:35,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:35,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:35,169 INFO L87 Difference]: Start difference. First operand 7321 states and 19365 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:35,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:35,574 INFO L93 Difference]: Finished difference Result 8405 states and 22190 transitions. [2022-03-03 17:05:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:35,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:35,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:35,584 INFO L225 Difference]: With dead ends: 8405 [2022-03-03 17:05:35,585 INFO L226 Difference]: Without dead ends: 7917 [2022-03-03 17:05:35,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:35,585 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 220 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:35,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 2630 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:35,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-03-03 17:05:35,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-03-03 17:05:35,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-03 17:05:35,672 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-03 17:05:35,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:35,672 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-03 17:05:35,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:35,673 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-03 17:05:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:35,680 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:35,680 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:35,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable514 [2022-03-03 17:05:35,680 INFO L402 AbstractCegarLoop]: === Iteration 516 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:35,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:35,680 INFO L85 PathProgramCache]: Analyzing trace with hash -192231078, now seen corresponding path program 214 times [2022-03-03 17:05:35,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:35,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198160099] [2022-03-03 17:05:35,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:35,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:35,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:35,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198160099] [2022-03-03 17:05:35,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198160099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:35,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:35,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:35,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501588356] [2022-03-03 17:05:35,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:35,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:35,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:35,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:35,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:35,789 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:36,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:36,424 INFO L93 Difference]: Finished difference Result 8628 states and 22759 transitions. [2022-03-03 17:05:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:05:36,424 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:36,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:36,434 INFO L225 Difference]: With dead ends: 8628 [2022-03-03 17:05:36,434 INFO L226 Difference]: Without dead ends: 8063 [2022-03-03 17:05:36,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=611, Invalid=1839, Unknown=0, NotChecked=0, Total=2450 [2022-03-03 17:05:36,434 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 366 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:36,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 2825 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8063 states. [2022-03-03 17:05:36,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8063 to 7313. [2022-03-03 17:05:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-03-03 17:05:36,525 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-03-03 17:05:36,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:36,525 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-03-03 17:05:36,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-03-03 17:05:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:36,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:36,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:36,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable515 [2022-03-03 17:05:36,533 INFO L402 AbstractCegarLoop]: === Iteration 517 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:36,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:36,533 INFO L85 PathProgramCache]: Analyzing trace with hash 672199984, now seen corresponding path program 215 times [2022-03-03 17:05:36,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:36,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060796978] [2022-03-03 17:05:36,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:36,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:36,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:36,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060796978] [2022-03-03 17:05:36,646 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060796978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:36,646 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:36,646 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:36,647 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453212653] [2022-03-03 17:05:36,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:36,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:36,647 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:36,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:36,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:36,647 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:37,207 INFO L93 Difference]: Finished difference Result 8515 states and 22463 transitions. [2022-03-03 17:05:37,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:37,208 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:37,217 INFO L225 Difference]: With dead ends: 8515 [2022-03-03 17:05:37,217 INFO L226 Difference]: Without dead ends: 7993 [2022-03-03 17:05:37,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:05:37,218 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 305 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:37,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 2769 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2022-03-03 17:05:37,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 7317. [2022-03-03 17:05:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-03-03 17:05:37,301 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-03-03 17:05:37,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:37,301 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-03-03 17:05:37,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,301 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-03-03 17:05:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:37,309 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:37,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:37,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable516 [2022-03-03 17:05:37,309 INFO L402 AbstractCegarLoop]: === Iteration 518 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:37,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:37,309 INFO L85 PathProgramCache]: Analyzing trace with hash -885715366, now seen corresponding path program 216 times [2022-03-03 17:05:37,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:37,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778140399] [2022-03-03 17:05:37,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:37,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:37,418 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:37,418 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778140399] [2022-03-03 17:05:37,418 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778140399] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:37,418 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:37,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:37,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908343420] [2022-03-03 17:05:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:37,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:37,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:37,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:37,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:37,419 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:37,835 INFO L93 Difference]: Finished difference Result 8375 states and 22099 transitions. [2022-03-03 17:05:37,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:37,836 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:37,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:37,846 INFO L225 Difference]: With dead ends: 8375 [2022-03-03 17:05:37,847 INFO L226 Difference]: Without dead ends: 7896 [2022-03-03 17:05:37,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:37,847 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 240 mSDsluCounter, 2484 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:37,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2658 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:37,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2022-03-03 17:05:37,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7321. [2022-03-03 17:05:37,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7321 states, 7320 states have (on average 2.6449453551912567) internal successors, (19361), 7320 states have internal predecessors, (19361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 19361 transitions. [2022-03-03 17:05:37,951 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 19361 transitions. Word has length 109 [2022-03-03 17:05:37,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:37,951 INFO L470 AbstractCegarLoop]: Abstraction has 7321 states and 19361 transitions. [2022-03-03 17:05:37,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,951 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 19361 transitions. [2022-03-03 17:05:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:37,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:37,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:37,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517 [2022-03-03 17:05:37,959 INFO L402 AbstractCegarLoop]: === Iteration 519 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:37,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:37,960 INFO L85 PathProgramCache]: Analyzing trace with hash 741807752, now seen corresponding path program 217 times [2022-03-03 17:05:37,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:37,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771459017] [2022-03-03 17:05:37,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:37,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:38,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:38,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771459017] [2022-03-03 17:05:38,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771459017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:38,071 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:38,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:38,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927747463] [2022-03-03 17:05:38,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:38,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:38,071 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:38,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:38,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:38,072 INFO L87 Difference]: Start difference. First operand 7321 states and 19361 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:38,459 INFO L93 Difference]: Finished difference Result 8265 states and 21801 transitions. [2022-03-03 17:05:38,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:38,459 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:38,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:38,470 INFO L225 Difference]: With dead ends: 8265 [2022-03-03 17:05:38,471 INFO L226 Difference]: Without dead ends: 7765 [2022-03-03 17:05:38,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:05:38,471 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 223 mSDsluCounter, 2143 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:38,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 2327 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:38,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-03-03 17:05:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7297. [2022-03-03 17:05:38,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.64734100877193) internal successors, (19315), 7296 states have internal predecessors, (19315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:38,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19315 transitions. [2022-03-03 17:05:38,582 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19315 transitions. Word has length 109 [2022-03-03 17:05:38,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:38,582 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19315 transitions. [2022-03-03 17:05:38,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:38,583 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19315 transitions. [2022-03-03 17:05:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:38,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:38,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:38,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable518 [2022-03-03 17:05:38,590 INFO L402 AbstractCegarLoop]: === Iteration 520 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:38,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1547592560, now seen corresponding path program 218 times [2022-03-03 17:05:38,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:38,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109243082] [2022-03-03 17:05:38,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:38,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:38,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:38,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109243082] [2022-03-03 17:05:38,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109243082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:38,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:38,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:38,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618343772] [2022-03-03 17:05:38,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:38,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:38,710 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:38,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:38,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:38,710 INFO L87 Difference]: Start difference. First operand 7297 states and 19315 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:39,064 INFO L93 Difference]: Finished difference Result 8303 states and 21917 transitions. [2022-03-03 17:05:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:39,065 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:39,073 INFO L225 Difference]: With dead ends: 8303 [2022-03-03 17:05:39,074 INFO L226 Difference]: Without dead ends: 7824 [2022-03-03 17:05:39,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2022-03-03 17:05:39,074 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 246 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2114 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:39,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2114 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2022-03-03 17:05:39,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7317. [2022-03-03 17:05:39,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6470749043193003) internal successors, (19366), 7316 states have internal predecessors, (19366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19366 transitions. [2022-03-03 17:05:39,159 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19366 transitions. Word has length 109 [2022-03-03 17:05:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:39,159 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19366 transitions. [2022-03-03 17:05:39,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,159 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19366 transitions. [2022-03-03 17:05:39,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:39,166 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:39,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:39,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable519 [2022-03-03 17:05:39,166 INFO L402 AbstractCegarLoop]: === Iteration 521 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:39,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:39,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1119851618, now seen corresponding path program 219 times [2022-03-03 17:05:39,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:39,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619005906] [2022-03-03 17:05:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:39,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:39,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:39,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619005906] [2022-03-03 17:05:39,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619005906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:39,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:39,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:39,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761439634] [2022-03-03 17:05:39,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:39,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:39,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:39,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:39,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:39,279 INFO L87 Difference]: Start difference. First operand 7317 states and 19366 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:39,711 INFO L93 Difference]: Finished difference Result 8269 states and 21828 transitions. [2022-03-03 17:05:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:39,711 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:39,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:39,722 INFO L225 Difference]: With dead ends: 8269 [2022-03-03 17:05:39,722 INFO L226 Difference]: Without dead ends: 7789 [2022-03-03 17:05:39,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=1072, Unknown=0, NotChecked=0, Total=1406 [2022-03-03 17:05:39,723 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 205 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:39,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 2639 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:39,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2022-03-03 17:05:39,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 7313. [2022-03-03 17:05:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6470185995623634) internal successors, (19355), 7312 states have internal predecessors, (19355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19355 transitions. [2022-03-03 17:05:39,827 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19355 transitions. Word has length 109 [2022-03-03 17:05:39,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:39,827 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19355 transitions. [2022-03-03 17:05:39,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,827 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19355 transitions. [2022-03-03 17:05:39,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:39,835 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:39,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:39,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable520 [2022-03-03 17:05:39,835 INFO L402 AbstractCegarLoop]: === Iteration 522 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:39,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:39,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2054058338, now seen corresponding path program 220 times [2022-03-03 17:05:39,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:39,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684831468] [2022-03-03 17:05:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:39,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:39,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:39,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684831468] [2022-03-03 17:05:39,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684831468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:39,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:39,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:39,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041017795] [2022-03-03 17:05:39,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:39,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:39,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:39,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:39,945 INFO L87 Difference]: Start difference. First operand 7313 states and 19355 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:40,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:40,470 INFO L93 Difference]: Finished difference Result 8305 states and 21923 transitions. [2022-03-03 17:05:40,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:40,470 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:40,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:40,481 INFO L225 Difference]: With dead ends: 8305 [2022-03-03 17:05:40,481 INFO L226 Difference]: Without dead ends: 7785 [2022-03-03 17:05:40,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=502, Invalid=1660, Unknown=0, NotChecked=0, Total=2162 [2022-03-03 17:05:40,482 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 296 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:40,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 2585 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:40,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2022-03-03 17:05:40,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7309. [2022-03-03 17:05:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6469622331691296) internal successors, (19344), 7308 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:40,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19344 transitions. [2022-03-03 17:05:40,590 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19344 transitions. Word has length 109 [2022-03-03 17:05:40,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:40,590 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19344 transitions. [2022-03-03 17:05:40,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:40,590 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19344 transitions. [2022-03-03 17:05:40,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:40,598 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:40,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:40,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable521 [2022-03-03 17:05:40,598 INFO L402 AbstractCegarLoop]: === Iteration 523 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:40,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:40,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1528922802, now seen corresponding path program 221 times [2022-03-03 17:05:40,598 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:40,598 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811388858] [2022-03-03 17:05:40,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:40,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:40,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:40,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811388858] [2022-03-03 17:05:40,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811388858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:40,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:40,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:40,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969978906] [2022-03-03 17:05:40,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:40,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:40,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:40,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:40,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:40,706 INFO L87 Difference]: Start difference. First operand 7309 states and 19344 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:41,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:41,281 INFO L93 Difference]: Finished difference Result 8281 states and 21857 transitions. [2022-03-03 17:05:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:05:41,282 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:41,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:41,291 INFO L225 Difference]: With dead ends: 8281 [2022-03-03 17:05:41,291 INFO L226 Difference]: Without dead ends: 7721 [2022-03-03 17:05:41,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=654, Invalid=1998, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:05:41,292 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 342 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:41,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 2704 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:41,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-03-03 17:05:41,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7305. [2022-03-03 17:05:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646905805038335) internal successors, (19333), 7304 states have internal predecessors, (19333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:41,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19333 transitions. [2022-03-03 17:05:41,381 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19333 transitions. Word has length 109 [2022-03-03 17:05:41,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:41,381 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19333 transitions. [2022-03-03 17:05:41,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19333 transitions. [2022-03-03 17:05:41,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:41,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:41,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:41,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable522 [2022-03-03 17:05:41,389 INFO L402 AbstractCegarLoop]: === Iteration 524 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:41,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:41,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1338609398, now seen corresponding path program 222 times [2022-03-03 17:05:41,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:41,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819302088] [2022-03-03 17:05:41,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:41,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:41,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:41,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819302088] [2022-03-03 17:05:41,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819302088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:41,507 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:41,507 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:41,507 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994785652] [2022-03-03 17:05:41,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:41,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:41,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:41,508 INFO L87 Difference]: Start difference. First operand 7305 states and 19333 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:41,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:41,888 INFO L93 Difference]: Finished difference Result 8351 states and 22049 transitions. [2022-03-03 17:05:41,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:41,888 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:41,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:41,899 INFO L225 Difference]: With dead ends: 8351 [2022-03-03 17:05:41,899 INFO L226 Difference]: Without dead ends: 7872 [2022-03-03 17:05:41,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:05:41,900 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 276 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:41,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [276 Valid, 2100 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2022-03-03 17:05:41,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 7317. [2022-03-03 17:05:41,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:42,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-03 17:05:42,009 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-03 17:05:42,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:42,010 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-03 17:05:42,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-03 17:05:42,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:42,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:42,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:42,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable523 [2022-03-03 17:05:42,018 INFO L402 AbstractCegarLoop]: === Iteration 525 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:42,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:42,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1328834780, now seen corresponding path program 223 times [2022-03-03 17:05:42,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:42,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570557080] [2022-03-03 17:05:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:42,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:42,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570557080] [2022-03-03 17:05:42,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570557080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:42,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:42,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:42,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211464195] [2022-03-03 17:05:42,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:42,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:42,131 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:42,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:42,132 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:42,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:42,557 INFO L93 Difference]: Finished difference Result 8309 states and 21938 transitions. [2022-03-03 17:05:42,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:42,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:42,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:42,567 INFO L225 Difference]: With dead ends: 8309 [2022-03-03 17:05:42,567 INFO L226 Difference]: Without dead ends: 7829 [2022-03-03 17:05:42,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:42,567 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 263 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:42,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2474 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7829 states. [2022-03-03 17:05:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7313. [2022-03-03 17:05:42,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-03 17:05:42,665 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-03 17:05:42,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:42,665 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-03 17:05:42,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-03 17:05:42,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:42,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:42,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:42,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable524 [2022-03-03 17:05:42,674 INFO L402 AbstractCegarLoop]: === Iteration 526 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:42,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:42,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1845075176, now seen corresponding path program 224 times [2022-03-03 17:05:42,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:42,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534228261] [2022-03-03 17:05:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:42,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:42,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:42,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534228261] [2022-03-03 17:05:42,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534228261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:42,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:42,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:42,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461459213] [2022-03-03 17:05:42,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:42,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:42,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:42,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:42,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:42,785 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:43,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:43,287 INFO L93 Difference]: Finished difference Result 8437 states and 22270 transitions. [2022-03-03 17:05:43,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:43,297 INFO L225 Difference]: With dead ends: 8437 [2022-03-03 17:05:43,297 INFO L226 Difference]: Without dead ends: 7917 [2022-03-03 17:05:43,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2022-03-03 17:05:43,298 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 310 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:43,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 2618 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-03-03 17:05:43,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7309. [2022-03-03 17:05:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-03 17:05:43,387 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-03 17:05:43,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:43,387 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-03 17:05:43,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-03 17:05:43,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:43,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:43,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:43,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable525 [2022-03-03 17:05:43,394 INFO L402 AbstractCegarLoop]: === Iteration 527 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:43,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:43,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1917704900, now seen corresponding path program 225 times [2022-03-03 17:05:43,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:43,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494608074] [2022-03-03 17:05:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:43,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:43,507 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:43,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494608074] [2022-03-03 17:05:43,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494608074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:43,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:43,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:43,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830625993] [2022-03-03 17:05:43,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:43,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:43,508 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:43,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:43,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:43,508 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:44,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:44,001 INFO L93 Difference]: Finished difference Result 8439 states and 22262 transitions. [2022-03-03 17:05:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:05:44,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:44,011 INFO L225 Difference]: With dead ends: 8439 [2022-03-03 17:05:44,011 INFO L226 Difference]: Without dead ends: 7917 [2022-03-03 17:05:44,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:05:44,011 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 292 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:44,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [292 Valid, 2328 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:44,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7917 states. [2022-03-03 17:05:44,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7917 to 7313. [2022-03-03 17:05:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:44,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-03-03 17:05:44,099 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-03-03 17:05:44,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:44,100 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-03-03 17:05:44,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:44,100 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-03-03 17:05:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:44,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:44,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:44,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable526 [2022-03-03 17:05:44,108 INFO L402 AbstractCegarLoop]: === Iteration 528 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:44,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:44,108 INFO L85 PathProgramCache]: Analyzing trace with hash 359789550, now seen corresponding path program 226 times [2022-03-03 17:05:44,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:44,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663953036] [2022-03-03 17:05:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:44,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:44,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:44,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663953036] [2022-03-03 17:05:44,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663953036] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:44,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:44,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:44,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498811145] [2022-03-03 17:05:44,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:44,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:44,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:44,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:44,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:44,262 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:44,654 INFO L93 Difference]: Finished difference Result 8291 states and 21876 transitions. [2022-03-03 17:05:44,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:44,655 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:44,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:44,664 INFO L225 Difference]: With dead ends: 8291 [2022-03-03 17:05:44,664 INFO L226 Difference]: Without dead ends: 7812 [2022-03-03 17:05:44,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:44,665 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 228 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:44,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 2256 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:44,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7812 states. [2022-03-03 17:05:44,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7812 to 7317. [2022-03-03 17:05:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-03-03 17:05:44,758 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-03-03 17:05:44,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:44,758 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-03-03 17:05:44,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:44,759 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-03-03 17:05:44,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:44,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:44,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:44,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable527 [2022-03-03 17:05:44,766 INFO L402 AbstractCegarLoop]: === Iteration 529 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:44,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:44,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1987312668, now seen corresponding path program 227 times [2022-03-03 17:05:44,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:44,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824200003] [2022-03-03 17:05:44,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:44,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:44,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:44,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824200003] [2022-03-03 17:05:44,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824200003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:44,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:44,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:44,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127436423] [2022-03-03 17:05:44,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:44,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:44,877 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:44,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:44,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:44,877 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:45,276 INFO L93 Difference]: Finished difference Result 8209 states and 21655 transitions. [2022-03-03 17:05:45,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:45,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:45,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:45,287 INFO L225 Difference]: With dead ends: 8209 [2022-03-03 17:05:45,287 INFO L226 Difference]: Without dead ends: 7717 [2022-03-03 17:05:45,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=1011, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:45,288 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 235 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 2452 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:45,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 2452 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2022-03-03 17:05:45,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 7301. [2022-03-03 17:05:45,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646849315068493) internal successors, (19322), 7300 states have internal predecessors, (19322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19322 transitions. [2022-03-03 17:05:45,386 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19322 transitions. Word has length 109 [2022-03-03 17:05:45,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:45,386 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19322 transitions. [2022-03-03 17:05:45,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19322 transitions. [2022-03-03 17:05:45,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:45,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:45,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:45,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable528 [2022-03-03 17:05:45,394 INFO L402 AbstractCegarLoop]: === Iteration 530 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:45,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:45,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1290573294, now seen corresponding path program 228 times [2022-03-03 17:05:45,395 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:45,395 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729618968] [2022-03-03 17:05:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:45,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:45,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:45,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:45,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729618968] [2022-03-03 17:05:45,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729618968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:45,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:45,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:45,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724752271] [2022-03-03 17:05:45,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:45,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:45,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:45,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:45,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:45,506 INFO L87 Difference]: Start difference. First operand 7301 states and 19322 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:45,880 INFO L93 Difference]: Finished difference Result 8387 states and 22148 transitions. [2022-03-03 17:05:45,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:45,880 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:45,890 INFO L225 Difference]: With dead ends: 8387 [2022-03-03 17:05:45,890 INFO L226 Difference]: Without dead ends: 7908 [2022-03-03 17:05:45,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:05:45,891 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 282 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2090 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:45,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [282 Valid, 2090 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:45,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-03-03 17:05:45,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-03-03 17:05:45,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6465281574630946) internal successors, (19362), 7316 states have internal predecessors, (19362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19362 transitions. [2022-03-03 17:05:45,984 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19362 transitions. Word has length 109 [2022-03-03 17:05:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:45,984 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19362 transitions. [2022-03-03 17:05:45,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,984 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19362 transitions. [2022-03-03 17:05:45,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:45,991 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:45,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:45,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable529 [2022-03-03 17:05:45,991 INFO L402 AbstractCegarLoop]: === Iteration 531 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:45,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:45,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1376870884, now seen corresponding path program 229 times [2022-03-03 17:05:45,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:45,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013928629] [2022-03-03 17:05:45,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:45,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:46,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:46,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:46,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013928629] [2022-03-03 17:05:46,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013928629] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:46,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:46,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:46,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642161657] [2022-03-03 17:05:46,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:46,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:46,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:46,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:46,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:46,102 INFO L87 Difference]: Start difference. First operand 7317 states and 19362 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:46,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:46,516 INFO L93 Difference]: Finished difference Result 8345 states and 22037 transitions. [2022-03-03 17:05:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:46,516 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:46,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:46,529 INFO L225 Difference]: With dead ends: 8345 [2022-03-03 17:05:46,529 INFO L226 Difference]: Without dead ends: 7865 [2022-03-03 17:05:46,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:46,529 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 263 mSDsluCounter, 2274 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:46,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2458 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:46,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7865 states. [2022-03-03 17:05:46,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7865 to 7313. [2022-03-03 17:05:46,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-03 17:05:46,636 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-03 17:05:46,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:46,636 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-03 17:05:46,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-03 17:05:46,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:46,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:46,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:46,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable530 [2022-03-03 17:05:46,645 INFO L402 AbstractCegarLoop]: === Iteration 532 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:46,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:46,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1797039072, now seen corresponding path program 230 times [2022-03-03 17:05:46,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:46,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174725075] [2022-03-03 17:05:46,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:46,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:46,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:46,761 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:46,761 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174725075] [2022-03-03 17:05:46,761 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174725075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:46,761 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:46,761 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:46,761 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074774199] [2022-03-03 17:05:46,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:46,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:46,761 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:46,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:46,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:46,762 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:47,287 INFO L93 Difference]: Finished difference Result 8453 states and 22314 transitions. [2022-03-03 17:05:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:05:47,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:47,297 INFO L225 Difference]: With dead ends: 8453 [2022-03-03 17:05:47,297 INFO L226 Difference]: Without dead ends: 7933 [2022-03-03 17:05:47,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=1501, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:05:47,297 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 306 mSDsluCounter, 2423 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2602 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:47,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [306 Valid, 2602 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-03-03 17:05:47,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7309. [2022-03-03 17:05:47,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:47,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-03 17:05:47,386 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-03 17:05:47,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:47,386 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-03 17:05:47,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:47,386 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-03 17:05:47,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:47,394 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:47,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:47,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable531 [2022-03-03 17:05:47,394 INFO L402 AbstractCegarLoop]: === Iteration 533 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:47,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1869668796, now seen corresponding path program 231 times [2022-03-03 17:05:47,394 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:47,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861746614] [2022-03-03 17:05:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:47,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:47,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:47,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:47,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861746614] [2022-03-03 17:05:47,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861746614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:47,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:47,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:47,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122465722] [2022-03-03 17:05:47,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:47,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:47,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:47,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:47,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:47,513 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:48,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:48,101 INFO L93 Difference]: Finished difference Result 8551 states and 22570 transitions. [2022-03-03 17:05:48,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:48,101 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:48,113 INFO L225 Difference]: With dead ends: 8551 [2022-03-03 17:05:48,113 INFO L226 Difference]: Without dead ends: 8029 [2022-03-03 17:05:48,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:05:48,113 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 302 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:48,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2738 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8029 states. [2022-03-03 17:05:48,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8029 to 7313. [2022-03-03 17:05:48,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6459245076586435) internal successors, (19347), 7312 states have internal predecessors, (19347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19347 transitions. [2022-03-03 17:05:48,227 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19347 transitions. Word has length 109 [2022-03-03 17:05:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:48,227 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19347 transitions. [2022-03-03 17:05:48,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:48,227 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19347 transitions. [2022-03-03 17:05:48,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:48,236 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:48,236 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:48,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable532 [2022-03-03 17:05:48,236 INFO L402 AbstractCegarLoop]: === Iteration 534 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:48,236 INFO L85 PathProgramCache]: Analyzing trace with hash 311753446, now seen corresponding path program 232 times [2022-03-03 17:05:48,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:48,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244584521] [2022-03-03 17:05:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:48,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:48,359 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:48,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244584521] [2022-03-03 17:05:48,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244584521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:48,359 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:48,359 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:48,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022387712] [2022-03-03 17:05:48,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:48,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:48,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:48,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:48,360 INFO L87 Difference]: Start difference. First operand 7313 states and 19347 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:48,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:48,823 INFO L93 Difference]: Finished difference Result 8387 states and 22140 transitions. [2022-03-03 17:05:48,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:48,823 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:48,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:48,835 INFO L225 Difference]: With dead ends: 8387 [2022-03-03 17:05:48,835 INFO L226 Difference]: Without dead ends: 7908 [2022-03-03 17:05:48,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=319, Invalid=1013, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:48,835 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 237 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:48,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 2448 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:48,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-03-03 17:05:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7317. [2022-03-03 17:05:48,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.6454346637506836) internal successors, (19354), 7316 states have internal predecessors, (19354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19354 transitions. [2022-03-03 17:05:48,950 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19354 transitions. Word has length 109 [2022-03-03 17:05:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:48,950 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19354 transitions. [2022-03-03 17:05:48,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:48,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19354 transitions. [2022-03-03 17:05:48,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:48,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:48,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:48,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable533 [2022-03-03 17:05:48,960 INFO L402 AbstractCegarLoop]: === Iteration 535 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:48,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:48,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1939276564, now seen corresponding path program 233 times [2022-03-03 17:05:48,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:48,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528847429] [2022-03-03 17:05:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:48,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:49,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:49,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528847429] [2022-03-03 17:05:49,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528847429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:49,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:49,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:49,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879057264] [2022-03-03 17:05:49,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:49,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:49,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:49,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:49,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:49,088 INFO L87 Difference]: Start difference. First operand 7317 states and 19354 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:49,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:49,551 INFO L93 Difference]: Finished difference Result 8321 states and 21963 transitions. [2022-03-03 17:05:49,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:49,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:49,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:49,563 INFO L225 Difference]: With dead ends: 8321 [2022-03-03 17:05:49,563 INFO L226 Difference]: Without dead ends: 7833 [2022-03-03 17:05:49,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:49,564 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 215 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:49,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 2588 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:49,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7833 states. [2022-03-03 17:05:49,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7833 to 7305. [2022-03-03 17:05:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-03-03 17:05:49,677 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-03-03 17:05:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:49,677 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-03-03 17:05:49,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:49,677 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-03-03 17:05:49,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:49,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:49,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:49,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable534 [2022-03-03 17:05:49,686 INFO L402 AbstractCegarLoop]: === Iteration 536 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:49,686 INFO L85 PathProgramCache]: Analyzing trace with hash 656932464, now seen corresponding path program 234 times [2022-03-03 17:05:49,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:49,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603432849] [2022-03-03 17:05:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:49,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:49,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:49,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603432849] [2022-03-03 17:05:49,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603432849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:49,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:49,808 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:49,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134321151] [2022-03-03 17:05:49,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:49,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:49,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:49,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:49,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:49,808 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:50,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:50,518 INFO L93 Difference]: Finished difference Result 8572 states and 22609 transitions. [2022-03-03 17:05:50,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:05:50,518 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:50,532 INFO L225 Difference]: With dead ends: 8572 [2022-03-03 17:05:50,532 INFO L226 Difference]: Without dead ends: 8007 [2022-03-03 17:05:50,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-03-03 17:05:50,533 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 404 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:50,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [404 Valid, 2224 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2022-03-03 17:05:50,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 7309. [2022-03-03 17:05:50,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-03-03 17:05:50,678 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-03-03 17:05:50,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:50,678 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-03-03 17:05:50,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:50,678 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-03-03 17:05:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:50,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:50,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:50,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable535 [2022-03-03 17:05:50,687 INFO L402 AbstractCegarLoop]: === Iteration 537 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:50,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:50,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1521363526, now seen corresponding path program 235 times [2022-03-03 17:05:50,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:50,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845682939] [2022-03-03 17:05:50,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:50,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:50,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:50,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:50,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:50,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845682939] [2022-03-03 17:05:50,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845682939] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:50,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:50,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:50,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888947454] [2022-03-03 17:05:50,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:50,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:50,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:50,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:50,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:50,808 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:51,388 INFO L93 Difference]: Finished difference Result 8455 states and 22302 transitions. [2022-03-03 17:05:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:51,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:51,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:51,399 INFO L225 Difference]: With dead ends: 8455 [2022-03-03 17:05:51,399 INFO L226 Difference]: Without dead ends: 7933 [2022-03-03 17:05:51,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=461, Invalid=1519, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:05:51,400 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 301 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:51,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 2528 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:51,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2022-03-03 17:05:51,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 7313. [2022-03-03 17:05:51,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-03-03 17:05:51,507 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-03-03 17:05:51,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:51,507 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-03-03 17:05:51,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:51,507 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-03-03 17:05:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:51,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:51,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:51,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable536 [2022-03-03 17:05:51,516 INFO L402 AbstractCegarLoop]: === Iteration 538 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:51,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:51,517 INFO L85 PathProgramCache]: Analyzing trace with hash -36551824, now seen corresponding path program 236 times [2022-03-03 17:05:51,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:51,517 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857248041] [2022-03-03 17:05:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:51,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:51,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:51,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857248041] [2022-03-03 17:05:51,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857248041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:51,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:51,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:51,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761618879] [2022-03-03 17:05:51,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:51,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:51,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:51,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:51,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:51,633 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:52,040 INFO L93 Difference]: Finished difference Result 8307 states and 21916 transitions. [2022-03-03 17:05:52,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:52,040 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:52,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:52,051 INFO L225 Difference]: With dead ends: 8307 [2022-03-03 17:05:52,051 INFO L226 Difference]: Without dead ends: 7828 [2022-03-03 17:05:52,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:52,051 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 263 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:52,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 2471 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:52,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7828 states. [2022-03-03 17:05:52,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7828 to 7317. [2022-03-03 17:05:52,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7316 states have (on average 2.644887916894478) internal successors, (19350), 7316 states have internal predecessors, (19350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 19350 transitions. [2022-03-03 17:05:52,140 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 19350 transitions. Word has length 109 [2022-03-03 17:05:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:52,140 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 19350 transitions. [2022-03-03 17:05:52,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 19350 transitions. [2022-03-03 17:05:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:52,147 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:52,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:52,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable537 [2022-03-03 17:05:52,147 INFO L402 AbstractCegarLoop]: === Iteration 539 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:52,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:52,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1590971294, now seen corresponding path program 237 times [2022-03-03 17:05:52,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:52,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633502043] [2022-03-03 17:05:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:52,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:52,253 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:52,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633502043] [2022-03-03 17:05:52,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633502043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:52,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:52,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:52,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031331992] [2022-03-03 17:05:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:52,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:52,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:52,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:52,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:52,254 INFO L87 Difference]: Start difference. First operand 7317 states and 19350 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:52,613 INFO L93 Difference]: Finished difference Result 8209 states and 21651 transitions. [2022-03-03 17:05:52,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:52,613 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:52,622 INFO L225 Difference]: With dead ends: 8209 [2022-03-03 17:05:52,622 INFO L226 Difference]: Without dead ends: 7713 [2022-03-03 17:05:52,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:52,623 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 234 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:52,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2422 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:52,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7713 states. [2022-03-03 17:05:52,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7713 to 7297. [2022-03-03 17:05:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6467927631578947) internal successors, (19311), 7296 states have internal predecessors, (19311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19311 transitions. [2022-03-03 17:05:52,708 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19311 transitions. Word has length 109 [2022-03-03 17:05:52,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:52,708 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19311 transitions. [2022-03-03 17:05:52,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19311 transitions. [2022-03-03 17:05:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:52,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:52,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:52,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable538 [2022-03-03 17:05:52,715 INFO L402 AbstractCegarLoop]: === Iteration 540 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:52,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash 187059838, now seen corresponding path program 238 times [2022-03-03 17:05:52,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:52,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350425045] [2022-03-03 17:05:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:52,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:52,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350425045] [2022-03-03 17:05:52,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350425045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:52,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:52,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:52,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255890518] [2022-03-03 17:05:52,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:52,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:52,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:52,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:52,821 INFO L87 Difference]: Start difference. First operand 7297 states and 19311 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:53,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:53,190 INFO L93 Difference]: Finished difference Result 8243 states and 21752 transitions. [2022-03-03 17:05:53,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:53,191 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:53,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:53,200 INFO L225 Difference]: With dead ends: 8243 [2022-03-03 17:05:53,200 INFO L226 Difference]: Without dead ends: 7764 [2022-03-03 17:05:53,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:53,200 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 291 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2444 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:53,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2444 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2022-03-03 17:05:53,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7313. [2022-03-03 17:05:53,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6464715536105032) internal successors, (19351), 7312 states have internal predecessors, (19351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19351 transitions. [2022-03-03 17:05:53,284 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19351 transitions. Word has length 109 [2022-03-03 17:05:53,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:53,284 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19351 transitions. [2022-03-03 17:05:53,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19351 transitions. [2022-03-03 17:05:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:53,291 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:53,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:53,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable539 [2022-03-03 17:05:53,292 INFO L402 AbstractCegarLoop]: === Iteration 541 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:53,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:53,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1814582956, now seen corresponding path program 239 times [2022-03-03 17:05:53,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:53,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179775078] [2022-03-03 17:05:53,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:53,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:53,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:53,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179775078] [2022-03-03 17:05:53,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179775078] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:53,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:53,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:53,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462204440] [2022-03-03 17:05:53,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:53,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:53,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:53,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:53,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:53,398 INFO L87 Difference]: Start difference. First operand 7313 states and 19351 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:53,795 INFO L93 Difference]: Finished difference Result 8201 states and 21641 transitions. [2022-03-03 17:05:53,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:53,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:53,804 INFO L225 Difference]: With dead ends: 8201 [2022-03-03 17:05:53,805 INFO L226 Difference]: Without dead ends: 7721 [2022-03-03 17:05:53,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=352, Invalid=1130, Unknown=0, NotChecked=0, Total=1482 [2022-03-03 17:05:53,805 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 225 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:53,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 2575 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:53,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7721 states. [2022-03-03 17:05:53,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7721 to 7309. [2022-03-03 17:05:53,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.646414887794198) internal successors, (19340), 7308 states have internal predecessors, (19340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19340 transitions. [2022-03-03 17:05:53,887 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19340 transitions. Word has length 109 [2022-03-03 17:05:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:53,887 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19340 transitions. [2022-03-03 17:05:53,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:53,887 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19340 transitions. [2022-03-03 17:05:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:53,894 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:53,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:53,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable540 [2022-03-03 17:05:53,894 INFO L402 AbstractCegarLoop]: === Iteration 542 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:53,894 INFO L85 PathProgramCache]: Analyzing trace with hash 693525616, now seen corresponding path program 240 times [2022-03-03 17:05:53,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:53,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78154149] [2022-03-03 17:05:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:53,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:54,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:54,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:54,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78154149] [2022-03-03 17:05:54,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78154149] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:54,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:54,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:54,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165807743] [2022-03-03 17:05:54,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:54,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:54,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:54,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:54,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:54,001 INFO L87 Difference]: Start difference. First operand 7309 states and 19340 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:54,465 INFO L93 Difference]: Finished difference Result 8189 states and 21608 transitions. [2022-03-03 17:05:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:05:54,465 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:54,475 INFO L225 Difference]: With dead ends: 8189 [2022-03-03 17:05:54,475 INFO L226 Difference]: Without dead ends: 7669 [2022-03-03 17:05:54,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:05:54,475 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 302 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:54,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 2570 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:54,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7669 states. [2022-03-03 17:05:54,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 7305. [2022-03-03 17:05:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.646358159912377) internal successors, (19329), 7304 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:54,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19329 transitions. [2022-03-03 17:05:54,567 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19329 transitions. Word has length 109 [2022-03-03 17:05:54,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:54,568 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19329 transitions. [2022-03-03 17:05:54,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:54,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19329 transitions. [2022-03-03 17:05:54,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:54,576 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:54,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:54,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable541 [2022-03-03 17:05:54,576 INFO L402 AbstractCegarLoop]: === Iteration 543 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:54,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:54,577 INFO L85 PathProgramCache]: Analyzing trace with hash 766155340, now seen corresponding path program 241 times [2022-03-03 17:05:54,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:54,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534193914] [2022-03-03 17:05:54,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:54,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:54,686 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:54,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534193914] [2022-03-03 17:05:54,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534193914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:54,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:54,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:54,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399838124] [2022-03-03 17:05:54,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:54,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:54,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:54,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:54,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:54,687 INFO L87 Difference]: Start difference. First operand 7305 states and 19329 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:55,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:55,213 INFO L93 Difference]: Finished difference Result 8383 states and 22112 transitions. [2022-03-03 17:05:55,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:55,213 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:55,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:55,222 INFO L225 Difference]: With dead ends: 8383 [2022-03-03 17:05:55,222 INFO L226 Difference]: Without dead ends: 7861 [2022-03-03 17:05:55,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=439, Invalid=1453, Unknown=0, NotChecked=0, Total=1892 [2022-03-03 17:05:55,223 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 346 mSDsluCounter, 2514 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2678 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:55,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 2678 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7861 states. [2022-03-03 17:05:55,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7861 to 7309. [2022-03-03 17:05:55,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.6458675424192664) internal successors, (19336), 7308 states have internal predecessors, (19336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:55,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19336 transitions. [2022-03-03 17:05:55,306 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19336 transitions. Word has length 109 [2022-03-03 17:05:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:55,307 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19336 transitions. [2022-03-03 17:05:55,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:55,307 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19336 transitions. [2022-03-03 17:05:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:55,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:55,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:55,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable542 [2022-03-03 17:05:55,314 INFO L402 AbstractCegarLoop]: === Iteration 544 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:55,314 INFO L85 PathProgramCache]: Analyzing trace with hash -791760010, now seen corresponding path program 242 times [2022-03-03 17:05:55,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:55,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372968980] [2022-03-03 17:05:55,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:55,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:55,425 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:55,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372968980] [2022-03-03 17:05:55,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372968980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:55,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:55,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:55,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592574945] [2022-03-03 17:05:55,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:55,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:55,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:55,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:55,426 INFO L87 Difference]: Start difference. First operand 7309 states and 19336 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:55,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:55,818 INFO L93 Difference]: Finished difference Result 8219 states and 21682 transitions. [2022-03-03 17:05:55,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:55,818 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:55,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:55,828 INFO L225 Difference]: With dead ends: 8219 [2022-03-03 17:05:55,828 INFO L226 Difference]: Without dead ends: 7740 [2022-03-03 17:05:55,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=314, Invalid=1018, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:55,829 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 270 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:55,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [270 Valid, 2397 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:55,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2022-03-03 17:05:55,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7313. [2022-03-03 17:05:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6453774617067833) internal successors, (19343), 7312 states have internal predecessors, (19343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:55,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19343 transitions. [2022-03-03 17:05:55,915 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19343 transitions. Word has length 109 [2022-03-03 17:05:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:55,916 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19343 transitions. [2022-03-03 17:05:55,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19343 transitions. [2022-03-03 17:05:55,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:55,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:55,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:55,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable543 [2022-03-03 17:05:55,923 INFO L402 AbstractCegarLoop]: === Iteration 545 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:55,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:55,923 INFO L85 PathProgramCache]: Analyzing trace with hash 835763108, now seen corresponding path program 243 times [2022-03-03 17:05:55,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:55,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615421218] [2022-03-03 17:05:55,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:55,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:56,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:56,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:56,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615421218] [2022-03-03 17:05:56,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615421218] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:56,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:56,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:56,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527666753] [2022-03-03 17:05:56,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:56,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:56,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:56,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:56,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:56,035 INFO L87 Difference]: Start difference. First operand 7313 states and 19343 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:56,448 INFO L93 Difference]: Finished difference Result 8153 states and 21505 transitions. [2022-03-03 17:05:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-03 17:05:56,449 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:56,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:56,458 INFO L225 Difference]: With dead ends: 8153 [2022-03-03 17:05:56,459 INFO L226 Difference]: Without dead ends: 7665 [2022-03-03 17:05:56,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=331, Invalid=1001, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:56,459 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 253 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:56,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [253 Valid, 2300 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2022-03-03 17:05:56,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 7301. [2022-03-03 17:05:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7301 states, 7300 states have (on average 2.646301369863014) internal successors, (19318), 7300 states have internal predecessors, (19318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7301 states to 7301 states and 19318 transitions. [2022-03-03 17:05:56,558 INFO L78 Accepts]: Start accepts. Automaton has 7301 states and 19318 transitions. Word has length 109 [2022-03-03 17:05:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:56,558 INFO L470 AbstractCegarLoop]: Abstraction has 7301 states and 19318 transitions. [2022-03-03 17:05:56,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:56,558 INFO L276 IsEmpty]: Start isEmpty. Operand 7301 states and 19318 transitions. [2022-03-03 17:05:56,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:56,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:56,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:56,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable544 [2022-03-03 17:05:56,566 INFO L402 AbstractCegarLoop]: === Iteration 546 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:56,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:56,566 INFO L85 PathProgramCache]: Analyzing trace with hash -446580992, now seen corresponding path program 244 times [2022-03-03 17:05:56,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:56,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519779746] [2022-03-03 17:05:56,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:56,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:56,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:56,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519779746] [2022-03-03 17:05:56,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519779746] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:56,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:56,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:56,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845980574] [2022-03-03 17:05:56,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:56,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:56,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:56,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:56,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:56,676 INFO L87 Difference]: Start difference. First operand 7301 states and 19318 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:57,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:57,332 INFO L93 Difference]: Finished difference Result 8516 states and 22459 transitions. [2022-03-03 17:05:57,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:05:57,332 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:57,342 INFO L225 Difference]: With dead ends: 8516 [2022-03-03 17:05:57,342 INFO L226 Difference]: Without dead ends: 7951 [2022-03-03 17:05:57,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=622, Invalid=2030, Unknown=0, NotChecked=0, Total=2652 [2022-03-03 17:05:57,342 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 422 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 2758 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:57,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [422 Valid, 2758 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7951 states. [2022-03-03 17:05:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7951 to 7305. [2022-03-03 17:05:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7305 states, 7304 states have (on average 2.6458105147864184) internal successors, (19325), 7304 states have internal predecessors, (19325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7305 states to 7305 states and 19325 transitions. [2022-03-03 17:05:57,429 INFO L78 Accepts]: Start accepts. Automaton has 7305 states and 19325 transitions. Word has length 109 [2022-03-03 17:05:57,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:57,429 INFO L470 AbstractCegarLoop]: Abstraction has 7305 states and 19325 transitions. [2022-03-03 17:05:57,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand 7305 states and 19325 transitions. [2022-03-03 17:05:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:57,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:57,437 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:57,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable545 [2022-03-03 17:05:57,437 INFO L402 AbstractCegarLoop]: === Iteration 547 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash 417850070, now seen corresponding path program 245 times [2022-03-03 17:05:57,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:57,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472578313] [2022-03-03 17:05:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:57,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:57,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:57,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472578313] [2022-03-03 17:05:57,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472578313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:57,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:57,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:57,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514737897] [2022-03-03 17:05:57,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:57,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:57,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:57,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:57,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:57,550 INFO L87 Difference]: Start difference. First operand 7305 states and 19325 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:58,069 INFO L93 Difference]: Finished difference Result 8391 states and 22130 transitions. [2022-03-03 17:05:58,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:58,069 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:58,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:58,080 INFO L225 Difference]: With dead ends: 8391 [2022-03-03 17:05:58,080 INFO L226 Difference]: Without dead ends: 7869 [2022-03-03 17:05:58,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=451, Invalid=1529, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:05:58,081 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 349 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:58,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2680 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:58,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7869 states. [2022-03-03 17:05:58,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7869 to 7309. [2022-03-03 17:05:58,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7308 states have (on average 2.645320197044335) internal successors, (19332), 7308 states have internal predecessors, (19332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 19332 transitions. [2022-03-03 17:05:58,186 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 19332 transitions. Word has length 109 [2022-03-03 17:05:58,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:58,186 INFO L470 AbstractCegarLoop]: Abstraction has 7309 states and 19332 transitions. [2022-03-03 17:05:58,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 19332 transitions. [2022-03-03 17:05:58,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:58,195 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:58,195 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:58,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable546 [2022-03-03 17:05:58,195 INFO L402 AbstractCegarLoop]: === Iteration 548 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1140065280, now seen corresponding path program 246 times [2022-03-03 17:05:58,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:58,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4434170] [2022-03-03 17:05:58,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:58,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:58,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:58,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:58,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4434170] [2022-03-03 17:05:58,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4434170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:58,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:58,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:58,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185325824] [2022-03-03 17:05:58,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:58,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:58,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:58,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:58,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:58,310 INFO L87 Difference]: Start difference. First operand 7309 states and 19332 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:58,682 INFO L93 Difference]: Finished difference Result 8227 states and 21700 transitions. [2022-03-03 17:05:58,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:05:58,682 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:58,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:58,691 INFO L225 Difference]: With dead ends: 8227 [2022-03-03 17:05:58,691 INFO L226 Difference]: Without dead ends: 7748 [2022-03-03 17:05:58,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=309, Invalid=1023, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:58,692 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 322 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:58,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 2051 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:58,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7748 states. [2022-03-03 17:05:58,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7748 to 7313. [2022-03-03 17:05:58,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7313 states, 7312 states have (on average 2.6448304157549236) internal successors, (19339), 7312 states have internal predecessors, (19339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7313 states to 7313 states and 19339 transitions. [2022-03-03 17:05:58,774 INFO L78 Accepts]: Start accepts. Automaton has 7313 states and 19339 transitions. Word has length 109 [2022-03-03 17:05:58,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:58,774 INFO L470 AbstractCegarLoop]: Abstraction has 7313 states and 19339 transitions. [2022-03-03 17:05:58,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7313 states and 19339 transitions. [2022-03-03 17:05:58,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:58,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:58,781 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:58,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable547 [2022-03-03 17:05:58,781 INFO L402 AbstractCegarLoop]: === Iteration 549 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:58,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:58,781 INFO L85 PathProgramCache]: Analyzing trace with hash 487457838, now seen corresponding path program 247 times [2022-03-03 17:05:58,781 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:58,781 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709544320] [2022-03-03 17:05:58,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:58,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:58,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:58,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:58,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709544320] [2022-03-03 17:05:58,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709544320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:58,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:58,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:58,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479609867] [2022-03-03 17:05:58,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:58,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:58,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:58,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:58,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:58,888 INFO L87 Difference]: Start difference. First operand 7313 states and 19339 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:59,255 INFO L93 Difference]: Finished difference Result 8153 states and 21501 transitions. [2022-03-03 17:05:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-03 17:05:59,255 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:05:59,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:59,264 INFO L225 Difference]: With dead ends: 8153 [2022-03-03 17:05:59,264 INFO L226 Difference]: Without dead ends: 7661 [2022-03-03 17:05:59,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:05:59,264 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 299 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:59,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [299 Valid, 2322 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:05:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7661 states. [2022-03-03 17:05:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7661 to 7297. [2022-03-03 17:05:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7297 states, 7296 states have (on average 2.6462445175438596) internal successors, (19307), 7296 states have internal predecessors, (19307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:59,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7297 states to 7297 states and 19307 transitions. [2022-03-03 17:05:59,345 INFO L78 Accepts]: Start accepts. Automaton has 7297 states and 19307 transitions. Word has length 109 [2022-03-03 17:05:59,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:59,345 INFO L470 AbstractCegarLoop]: Abstraction has 7297 states and 19307 transitions. [2022-03-03 17:05:59,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:59,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7297 states and 19307 transitions. [2022-03-03 17:05:59,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:05:59,352 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:59,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:59,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable548 [2022-03-03 17:05:59,352 INFO L402 AbstractCegarLoop]: === Iteration 550 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:59,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:59,353 INFO L85 PathProgramCache]: Analyzing trace with hash -94104470, now seen corresponding path program 248 times [2022-03-03 17:05:59,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:59,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524628089] [2022-03-03 17:05:59,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:59,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:59,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:59,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524628089] [2022-03-03 17:05:59,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524628089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:59,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:59,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:05:59,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405291850] [2022-03-03 17:05:59,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:59,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:05:59,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:59,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:05:59,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:05:59,460 INFO L87 Difference]: Start difference. First operand 7297 states and 19307 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:00,075 INFO L93 Difference]: Finished difference Result 8378 states and 22067 transitions. [2022-03-03 17:06:00,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-03 17:06:00,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:06:00,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:00,084 INFO L225 Difference]: With dead ends: 8378 [2022-03-03 17:06:00,084 INFO L226 Difference]: Without dead ends: 7770 [2022-03-03 17:06:00,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:06:00,085 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 556 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:00,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 2558 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:06:00,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7770 states. [2022-03-03 17:06:00,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7770 to 7254. [2022-03-03 17:06:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7254 states, 7253 states have (on average 2.6459396111953675) internal successors, (19191), 7253 states have internal predecessors, (19191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7254 states to 7254 states and 19191 transitions. [2022-03-03 17:06:00,164 INFO L78 Accepts]: Start accepts. Automaton has 7254 states and 19191 transitions. Word has length 109 [2022-03-03 17:06:00,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:00,164 INFO L470 AbstractCegarLoop]: Abstraction has 7254 states and 19191 transitions. [2022-03-03 17:06:00,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7254 states and 19191 transitions. [2022-03-03 17:06:00,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:06:00,171 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:00,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:00,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable549 [2022-03-03 17:06:00,171 INFO L402 AbstractCegarLoop]: === Iteration 551 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:00,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1930391086, now seen corresponding path program 249 times [2022-03-03 17:06:00,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:00,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974094000] [2022-03-03 17:06:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:00,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:00,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974094000] [2022-03-03 17:06:00,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974094000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:00,283 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:00,283 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:06:00,283 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141077158] [2022-03-03 17:06:00,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:00,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:06:00,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:00,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:06:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:06:00,283 INFO L87 Difference]: Start difference. First operand 7254 states and 19191 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:00,940 INFO L93 Difference]: Finished difference Result 8273 states and 21793 transitions. [2022-03-03 17:06:00,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:06:00,941 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:06:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:00,951 INFO L225 Difference]: With dead ends: 8273 [2022-03-03 17:06:00,952 INFO L226 Difference]: Without dead ends: 7708 [2022-03-03 17:06:00,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=2128, Unknown=0, NotChecked=0, Total=2756 [2022-03-03 17:06:00,952 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 502 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:00,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [502 Valid, 2470 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:06:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7708 states. [2022-03-03 17:06:01,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7708 to 7258. [2022-03-03 17:06:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7258 states, 7257 states have (on average 2.645445776491663) internal successors, (19198), 7257 states have internal predecessors, (19198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:01,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7258 states to 7258 states and 19198 transitions. [2022-03-03 17:06:01,052 INFO L78 Accepts]: Start accepts. Automaton has 7258 states and 19198 transitions. Word has length 109 [2022-03-03 17:06:01,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:01,052 INFO L470 AbstractCegarLoop]: Abstraction has 7258 states and 19198 transitions. [2022-03-03 17:06:01,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:01,052 INFO L276 IsEmpty]: Start isEmpty. Operand 7258 states and 19198 transitions. [2022-03-03 17:06:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:06:01,060 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:01,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:01,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable550 [2022-03-03 17:06:01,060 INFO L402 AbstractCegarLoop]: === Iteration 552 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:01,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:01,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1500145148, now seen corresponding path program 250 times [2022-03-03 17:06:01,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:01,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512585047] [2022-03-03 17:06:01,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:01,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:01,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:01,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512585047] [2022-03-03 17:06:01,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512585047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:01,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:01,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:06:01,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595363848] [2022-03-03 17:06:01,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:01,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:06:01,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:01,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:06:01,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:06:01,171 INFO L87 Difference]: Start difference. First operand 7258 states and 19198 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:01,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:01,685 INFO L93 Difference]: Finished difference Result 8168 states and 21519 transitions. [2022-03-03 17:06:01,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:01,686 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:06:01,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:01,696 INFO L225 Difference]: With dead ends: 8168 [2022-03-03 17:06:01,696 INFO L226 Difference]: Without dead ends: 7646 [2022-03-03 17:06:01,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=441, Invalid=1539, Unknown=0, NotChecked=0, Total=1980 [2022-03-03 17:06:01,696 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 365 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:01,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 2529 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:06:01,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2022-03-03 17:06:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7262. [2022-03-03 17:06:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7262 states, 7261 states have (on average 2.644952485883487) internal successors, (19205), 7261 states have internal predecessors, (19205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:01,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7262 states to 7262 states and 19205 transitions. [2022-03-03 17:06:01,792 INFO L78 Accepts]: Start accepts. Automaton has 7262 states and 19205 transitions. Word has length 109 [2022-03-03 17:06:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:01,792 INFO L470 AbstractCegarLoop]: Abstraction has 7262 states and 19205 transitions. [2022-03-03 17:06:01,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:01,792 INFO L276 IsEmpty]: Start isEmpty. Operand 7262 states and 19205 transitions. [2022-03-03 17:06:01,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:06:01,799 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:01,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:01,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable551 [2022-03-03 17:06:01,800 INFO L402 AbstractCegarLoop]: === Iteration 553 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:01,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:01,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1236906798, now seen corresponding path program 251 times [2022-03-03 17:06:01,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:01,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153558776] [2022-03-03 17:06:01,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:01,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:01,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:01,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153558776] [2022-03-03 17:06:01,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153558776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:01,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:01,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:06:01,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858164941] [2022-03-03 17:06:01,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:01,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:06:01,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:01,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:06:01,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:06:01,918 INFO L87 Difference]: Start difference. First operand 7262 states and 19205 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:02,379 INFO L93 Difference]: Finished difference Result 8044 states and 21199 transitions. [2022-03-03 17:06:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-03 17:06:02,379 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:06:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:02,388 INFO L225 Difference]: With dead ends: 8044 [2022-03-03 17:06:02,388 INFO L226 Difference]: Without dead ends: 7565 [2022-03-03 17:06:02,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=304, Invalid=1028, Unknown=0, NotChecked=0, Total=1332 [2022-03-03 17:06:02,388 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 298 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:02,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 2420 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:06:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2022-03-03 17:06:02,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7266. [2022-03-03 17:06:02,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 7265 states have (on average 2.6444597384721265) internal successors, (19212), 7265 states have internal predecessors, (19212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:02,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 19212 transitions. [2022-03-03 17:06:02,472 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 19212 transitions. Word has length 109 [2022-03-03 17:06:02,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:02,472 INFO L470 AbstractCegarLoop]: Abstraction has 7266 states and 19212 transitions. [2022-03-03 17:06:02,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:02,472 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 19212 transitions. [2022-03-03 17:06:02,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-03 17:06:02,479 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:02,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:02,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable552 [2022-03-03 17:06:02,479 INFO L402 AbstractCegarLoop]: === Iteration 554 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:02,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:02,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1430537380, now seen corresponding path program 252 times [2022-03-03 17:06:02,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:02,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54124447] [2022-03-03 17:06:02,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:02,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:02,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54124447] [2022-03-03 17:06:02,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54124447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:02,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:02,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-03-03 17:06:02,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214634441] [2022-03-03 17:06:02,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:02,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-03 17:06:02,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-03 17:06:02,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-03-03 17:06:02,587 INFO L87 Difference]: Start difference. First operand 7266 states and 19212 transitions. Second operand has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:02,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:02,919 INFO L93 Difference]: Finished difference Result 7742 states and 20401 transitions. [2022-03-03 17:06:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-03 17:06:02,919 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-03-03 17:06:02,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:02,928 INFO L225 Difference]: With dead ends: 7742 [2022-03-03 17:06:02,929 INFO L226 Difference]: Without dead ends: 7154 [2022-03-03 17:06:02,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-03-03 17:06:02,929 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 224 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:02,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2317 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:06:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7154 states. [2022-03-03 17:06:03,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7154 to 7154. [2022-03-03 17:06:03,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 7153 states have (on average 2.6496574863693554) internal successors, (18953), 7153 states have internal predecessors, (18953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:03,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 18953 transitions. [2022-03-03 17:06:03,021 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 18953 transitions. Word has length 109 [2022-03-03 17:06:03,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:03,022 INFO L470 AbstractCegarLoop]: Abstraction has 7154 states and 18953 transitions. [2022-03-03 17:06:03,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.785714285714286) internal successors, (109), 14 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:03,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 18953 transitions. [2022-03-03 17:06:03,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:03,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:03,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:03,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable553 [2022-03-03 17:06:03,030 INFO L402 AbstractCegarLoop]: === Iteration 555 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:03,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:03,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1712437026, now seen corresponding path program 1 times [2022-03-03 17:06:03,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:03,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055419133] [2022-03-03 17:06:03,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:03,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:03,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:03,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:03,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055419133] [2022-03-03 17:06:03,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055419133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:03,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:03,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:03,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892674677] [2022-03-03 17:06:03,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:03,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:03,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:03,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:03,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:03,598 INFO L87 Difference]: Start difference. First operand 7154 states and 18953 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:11,949 INFO L93 Difference]: Finished difference Result 13508 states and 35803 transitions. [2022-03-03 17:06:11,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2022-03-03 17:06:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:11,964 INFO L225 Difference]: With dead ends: 13508 [2022-03-03 17:06:11,964 INFO L226 Difference]: Without dead ends: 12060 [2022-03-03 17:06:11,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4885 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=4501, Invalid=14131, Unknown=0, NotChecked=0, Total=18632 [2022-03-03 17:06:11,965 INFO L933 BasicCegarLoop]: 642 mSDtfsCounter, 2383 mSDsluCounter, 13767 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 14104 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:11,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2383 Valid, 14104 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:06:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12060 states. [2022-03-03 17:06:12,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12060 to 7454. [2022-03-03 17:06:12,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7454 states, 7453 states have (on average 2.6520864081577886) internal successors, (19766), 7453 states have internal predecessors, (19766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:12,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7454 states to 7454 states and 19766 transitions. [2022-03-03 17:06:12,069 INFO L78 Accepts]: Start accepts. Automaton has 7454 states and 19766 transitions. Word has length 153 [2022-03-03 17:06:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:12,069 INFO L470 AbstractCegarLoop]: Abstraction has 7454 states and 19766 transitions. [2022-03-03 17:06:12,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7454 states and 19766 transitions. [2022-03-03 17:06:12,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:12,077 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:12,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:12,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable554 [2022-03-03 17:06:12,078 INFO L402 AbstractCegarLoop]: === Iteration 556 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:12,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:12,078 INFO L85 PathProgramCache]: Analyzing trace with hash -941226786, now seen corresponding path program 2 times [2022-03-03 17:06:12,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:12,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843069542] [2022-03-03 17:06:12,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:12,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:12,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:12,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843069542] [2022-03-03 17:06:12,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843069542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:12,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:12,620 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:12,620 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312367203] [2022-03-03 17:06:12,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:12,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:12,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:12,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:12,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:12,620 INFO L87 Difference]: Start difference. First operand 7454 states and 19766 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:19,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:19,678 INFO L93 Difference]: Finished difference Result 14381 states and 38021 transitions. [2022-03-03 17:06:19,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-03 17:06:19,678 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:19,696 INFO L225 Difference]: With dead ends: 14381 [2022-03-03 17:06:19,697 INFO L226 Difference]: Without dead ends: 13093 [2022-03-03 17:06:19,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4216 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3612, Invalid=12390, Unknown=0, NotChecked=0, Total=16002 [2022-03-03 17:06:19,699 INFO L933 BasicCegarLoop]: 638 mSDtfsCounter, 2019 mSDsluCounter, 12515 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 12882 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:19,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2019 Valid, 12882 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:06:19,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13093 states. [2022-03-03 17:06:19,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13093 to 7510. [2022-03-03 17:06:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7510 states, 7509 states have (on average 2.645891596750566) internal successors, (19868), 7509 states have internal predecessors, (19868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7510 states to 7510 states and 19868 transitions. [2022-03-03 17:06:19,816 INFO L78 Accepts]: Start accepts. Automaton has 7510 states and 19868 transitions. Word has length 153 [2022-03-03 17:06:19,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:19,816 INFO L470 AbstractCegarLoop]: Abstraction has 7510 states and 19868 transitions. [2022-03-03 17:06:19,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:19,816 INFO L276 IsEmpty]: Start isEmpty. Operand 7510 states and 19868 transitions. [2022-03-03 17:06:19,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:19,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:19,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:19,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable555 [2022-03-03 17:06:19,824 INFO L402 AbstractCegarLoop]: === Iteration 557 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:19,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:19,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1092732770, now seen corresponding path program 3 times [2022-03-03 17:06:19,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:19,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036347481] [2022-03-03 17:06:19,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:19,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:20,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:20,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036347481] [2022-03-03 17:06:20,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036347481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:20,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:20,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:20,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171728015] [2022-03-03 17:06:20,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:20,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:20,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:20,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:20,341 INFO L87 Difference]: Start difference. First operand 7510 states and 19868 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:23,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:23,783 INFO L93 Difference]: Finished difference Result 12770 states and 33797 transitions. [2022-03-03 17:06:23,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:06:23,783 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:23,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:23,797 INFO L225 Difference]: With dead ends: 12770 [2022-03-03 17:06:23,797 INFO L226 Difference]: Without dead ends: 12279 [2022-03-03 17:06:23,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1146, Invalid=3966, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:06:23,798 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 1109 mSDsluCounter, 11859 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 12150 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:23,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 12150 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:06:23,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12279 states. [2022-03-03 17:06:23,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12279 to 7542. [2022-03-03 17:06:23,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 7541 states have (on average 2.6458029439066437) internal successors, (19952), 7541 states have internal predecessors, (19952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 19952 transitions. [2022-03-03 17:06:23,910 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 19952 transitions. Word has length 153 [2022-03-03 17:06:23,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:23,910 INFO L470 AbstractCegarLoop]: Abstraction has 7542 states and 19952 transitions. [2022-03-03 17:06:23,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 19952 transitions. [2022-03-03 17:06:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:23,918 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:23,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:23,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable556 [2022-03-03 17:06:23,918 INFO L402 AbstractCegarLoop]: === Iteration 558 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:23,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:23,919 INFO L85 PathProgramCache]: Analyzing trace with hash 534790348, now seen corresponding path program 4 times [2022-03-03 17:06:23,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:23,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942438022] [2022-03-03 17:06:23,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:23,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:24,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:24,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942438022] [2022-03-03 17:06:24,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942438022] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:24,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:24,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:24,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883657380] [2022-03-03 17:06:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:24,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:24,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:24,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:24,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:24,392 INFO L87 Difference]: Start difference. First operand 7542 states and 19952 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:27,663 INFO L93 Difference]: Finished difference Result 12767 states and 33787 transitions. [2022-03-03 17:06:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:06:27,664 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:27,681 INFO L225 Difference]: With dead ends: 12767 [2022-03-03 17:06:27,681 INFO L226 Difference]: Without dead ends: 12275 [2022-03-03 17:06:27,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1179, Invalid=4673, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:06:27,682 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 1143 mSDsluCounter, 11521 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 11830 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:27,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 11830 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:06:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12275 states. [2022-03-03 17:06:27,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12275 to 7538. [2022-03-03 17:06:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 7537 states have (on average 2.645747644951572) internal successors, (19941), 7537 states have internal predecessors, (19941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 19941 transitions. [2022-03-03 17:06:27,801 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 19941 transitions. Word has length 153 [2022-03-03 17:06:27,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:27,801 INFO L470 AbstractCegarLoop]: Abstraction has 7538 states and 19941 transitions. [2022-03-03 17:06:27,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 19941 transitions. [2022-03-03 17:06:27,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:27,809 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:27,809 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:27,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable557 [2022-03-03 17:06:27,809 INFO L402 AbstractCegarLoop]: === Iteration 559 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:27,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:27,809 INFO L85 PathProgramCache]: Analyzing trace with hash -586266992, now seen corresponding path program 5 times [2022-03-03 17:06:27,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:27,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403587311] [2022-03-03 17:06:27,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:27,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:28,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:28,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403587311] [2022-03-03 17:06:28,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403587311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:28,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:28,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:28,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722013948] [2022-03-03 17:06:28,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:28,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:28,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:28,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:28,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:28,277 INFO L87 Difference]: Start difference. First operand 7538 states and 19941 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:32,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:32,110 INFO L93 Difference]: Finished difference Result 12803 states and 33882 transitions. [2022-03-03 17:06:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:06:32,110 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:32,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:32,124 INFO L225 Difference]: With dead ends: 12803 [2022-03-03 17:06:32,124 INFO L226 Difference]: Without dead ends: 12271 [2022-03-03 17:06:32,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1339 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1481, Invalid=6001, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 17:06:32,125 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1234 mSDsluCounter, 12221 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 12526 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:32,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 12526 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:06:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12271 states. [2022-03-03 17:06:32,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12271 to 7534. [2022-03-03 17:06:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6456922872693482) internal successors, (19930), 7533 states have internal predecessors, (19930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:32,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19930 transitions. [2022-03-03 17:06:32,233 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19930 transitions. Word has length 153 [2022-03-03 17:06:32,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:32,233 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19930 transitions. [2022-03-03 17:06:32,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:32,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19930 transitions. [2022-03-03 17:06:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:32,241 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:32,241 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:32,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable558 [2022-03-03 17:06:32,241 INFO L402 AbstractCegarLoop]: === Iteration 560 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:32,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:32,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1111402528, now seen corresponding path program 6 times [2022-03-03 17:06:32,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:32,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633383172] [2022-03-03 17:06:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:32,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:32,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:32,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633383172] [2022-03-03 17:06:32,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633383172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:32,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:32,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:32,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957077512] [2022-03-03 17:06:32,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:32,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:32,778 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:32,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:32,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:32,778 INFO L87 Difference]: Start difference. First operand 7534 states and 19930 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:37,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:37,262 INFO L93 Difference]: Finished difference Result 12839 states and 33977 transitions. [2022-03-03 17:06:37,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 17:06:37,262 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:37,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:37,279 INFO L225 Difference]: With dead ends: 12839 [2022-03-03 17:06:37,279 INFO L226 Difference]: Without dead ends: 12267 [2022-03-03 17:06:37,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1859 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1850, Invalid=7462, Unknown=0, NotChecked=0, Total=9312 [2022-03-03 17:06:37,280 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 1309 mSDsluCounter, 12990 mSDsCounter, 0 mSdLazyCounter, 2090 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 13287 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:37,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1309 Valid, 13287 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2090 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:06:37,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12267 states. [2022-03-03 17:06:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12267 to 7530. [2022-03-03 17:06:37,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.64563687076637) internal successors, (19919), 7529 states have internal predecessors, (19919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:37,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19919 transitions. [2022-03-03 17:06:37,391 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19919 transitions. Word has length 153 [2022-03-03 17:06:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:37,391 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19919 transitions. [2022-03-03 17:06:37,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:37,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19919 transitions. [2022-03-03 17:06:37,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:37,400 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:37,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:37,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable559 [2022-03-03 17:06:37,400 INFO L402 AbstractCegarLoop]: === Iteration 561 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:37,400 INFO L85 PathProgramCache]: Analyzing trace with hash -459109262, now seen corresponding path program 7 times [2022-03-03 17:06:37,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:37,400 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603655315] [2022-03-03 17:06:37,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:37,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:37,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:37,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:37,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603655315] [2022-03-03 17:06:37,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603655315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:37,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:37,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:37,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513829526] [2022-03-03 17:06:37,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:37,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:37,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:37,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:37,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:37,892 INFO L87 Difference]: Start difference. First operand 7530 states and 19919 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:43,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:43,101 INFO L93 Difference]: Finished difference Result 12875 states and 34072 transitions. [2022-03-03 17:06:43,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 17:06:43,101 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:43,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:43,116 INFO L225 Difference]: With dead ends: 12875 [2022-03-03 17:06:43,116 INFO L226 Difference]: Without dead ends: 12263 [2022-03-03 17:06:43,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2537 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2292, Invalid=9050, Unknown=0, NotChecked=0, Total=11342 [2022-03-03 17:06:43,117 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 1393 mSDsluCounter, 13162 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 13466 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:43,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1393 Valid, 13466 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:06:43,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12263 states. [2022-03-03 17:06:43,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12263 to 7526. [2022-03-03 17:06:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.645581395348837) internal successors, (19908), 7525 states have internal predecessors, (19908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19908 transitions. [2022-03-03 17:06:43,232 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19908 transitions. Word has length 153 [2022-03-03 17:06:43,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:43,233 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19908 transitions. [2022-03-03 17:06:43,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19908 transitions. [2022-03-03 17:06:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:43,240 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:43,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:43,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable560 [2022-03-03 17:06:43,241 INFO L402 AbstractCegarLoop]: === Iteration 562 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:43,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:43,241 INFO L85 PathProgramCache]: Analyzing trace with hash 750574982, now seen corresponding path program 8 times [2022-03-03 17:06:43,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:43,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397326588] [2022-03-03 17:06:43,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:43,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:43,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:43,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397326588] [2022-03-03 17:06:43,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397326588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:43,734 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:43,734 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:43,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428694148] [2022-03-03 17:06:43,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:43,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:43,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:43,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:43,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:43,735 INFO L87 Difference]: Start difference. First operand 7526 states and 19908 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:49,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:49,676 INFO L93 Difference]: Finished difference Result 12991 states and 34379 transitions. [2022-03-03 17:06:49,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 17:06:49,676 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:49,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:49,692 INFO L225 Difference]: With dead ends: 12991 [2022-03-03 17:06:49,692 INFO L226 Difference]: Without dead ends: 12251 [2022-03-03 17:06:49,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3284 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2804, Invalid=10768, Unknown=0, NotChecked=0, Total=13572 [2022-03-03 17:06:49,694 INFO L933 BasicCegarLoop]: 610 mSDtfsCounter, 1506 mSDsluCounter, 13327 mSDsCounter, 0 mSdLazyCounter, 2096 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 13639 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:49,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1506 Valid, 13639 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2096 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:06:49,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12251 states. [2022-03-03 17:06:49,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12251 to 7514. [2022-03-03 17:06:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7513 states have (on average 2.645414614667909) internal successors, (19875), 7513 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:49,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 19875 transitions. [2022-03-03 17:06:49,805 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 19875 transitions. Word has length 153 [2022-03-03 17:06:49,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:49,805 INFO L470 AbstractCegarLoop]: Abstraction has 7514 states and 19875 transitions. [2022-03-03 17:06:49,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:49,806 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 19875 transitions. [2022-03-03 17:06:49,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:49,813 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:49,813 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:49,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable561 [2022-03-03 17:06:49,813 INFO L402 AbstractCegarLoop]: === Iteration 563 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:49,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:49,813 INFO L85 PathProgramCache]: Analyzing trace with hash 7965528, now seen corresponding path program 9 times [2022-03-03 17:06:49,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:49,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751019921] [2022-03-03 17:06:49,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:49,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:50,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:50,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751019921] [2022-03-03 17:06:50,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751019921] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:50,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:50,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:50,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048422212] [2022-03-03 17:06:50,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:50,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:50,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:50,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:50,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:50,314 INFO L87 Difference]: Start difference. First operand 7514 states and 19875 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:56,632 INFO L93 Difference]: Finished difference Result 13019 states and 34452 transitions. [2022-03-03 17:06:56,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-03 17:06:56,633 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:06:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:56,649 INFO L225 Difference]: With dead ends: 13019 [2022-03-03 17:06:56,649 INFO L226 Difference]: Without dead ends: 12195 [2022-03-03 17:06:56,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3661 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=3192, Invalid=11570, Unknown=0, NotChecked=0, Total=14762 [2022-03-03 17:06:56,651 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 1639 mSDsluCounter, 13488 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 13808 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:56,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1639 Valid, 13808 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:06:56,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12195 states. [2022-03-03 17:06:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12195 to 7458. [2022-03-03 17:06:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7457 states have (on average 2.6516025211210943) internal successors, (19773), 7457 states have internal predecessors, (19773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 19773 transitions. [2022-03-03 17:06:56,760 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 19773 transitions. Word has length 153 [2022-03-03 17:06:56,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:56,760 INFO L470 AbstractCegarLoop]: Abstraction has 7458 states and 19773 transitions. [2022-03-03 17:06:56,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 19773 transitions. [2022-03-03 17:06:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:06:56,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:56,768 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:56,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable562 [2022-03-03 17:06:56,768 INFO L402 AbstractCegarLoop]: === Iteration 564 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:56,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:56,768 INFO L85 PathProgramCache]: Analyzing trace with hash -545555932, now seen corresponding path program 10 times [2022-03-03 17:06:56,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:56,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776326178] [2022-03-03 17:06:56,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:56,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:57,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:57,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776326178] [2022-03-03 17:06:57,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776326178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:57,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:57,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:06:57,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554496087] [2022-03-03 17:06:57,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:57,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:06:57,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:57,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:06:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:06:57,270 INFO L87 Difference]: Start difference. First operand 7458 states and 19773 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:04,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:04,795 INFO L93 Difference]: Finished difference Result 13392 states and 35480 transitions. [2022-03-03 17:07:04,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-03-03 17:07:04,795 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:04,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:04,809 INFO L225 Difference]: With dead ends: 13392 [2022-03-03 17:07:04,809 INFO L226 Difference]: Without dead ends: 12048 [2022-03-03 17:07:04,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4573 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=4042, Invalid=13250, Unknown=0, NotChecked=0, Total=17292 [2022-03-03 17:07:04,811 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 1987 mSDsluCounter, 13035 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 13391 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:04,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1987 Valid, 13391 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:07:04,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12048 states. [2022-03-03 17:07:04,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12048 to 7442. [2022-03-03 17:07:04,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7442 states, 7441 states have (on average 2.651928504233302) internal successors, (19733), 7441 states have internal predecessors, (19733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:04,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7442 states to 7442 states and 19733 transitions. [2022-03-03 17:07:04,923 INFO L78 Accepts]: Start accepts. Automaton has 7442 states and 19733 transitions. Word has length 153 [2022-03-03 17:07:04,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:04,923 INFO L470 AbstractCegarLoop]: Abstraction has 7442 states and 19733 transitions. [2022-03-03 17:07:04,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:04,923 INFO L276 IsEmpty]: Start isEmpty. Operand 7442 states and 19733 transitions. [2022-03-03 17:07:04,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:04,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:04,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:04,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable563 [2022-03-03 17:07:04,931 INFO L402 AbstractCegarLoop]: === Iteration 565 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:04,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1326802646, now seen corresponding path program 11 times [2022-03-03 17:07:04,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:04,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225114639] [2022-03-03 17:07:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:05,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:05,439 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225114639] [2022-03-03 17:07:05,439 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225114639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:05,439 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:05,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:05,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646374921] [2022-03-03 17:07:05,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:05,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:05,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:05,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:05,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:05,439 INFO L87 Difference]: Start difference. First operand 7442 states and 19733 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:12,595 INFO L93 Difference]: Finished difference Result 14889 states and 39393 transitions. [2022-03-03 17:07:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-03 17:07:12,595 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:12,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:12,610 INFO L225 Difference]: With dead ends: 14889 [2022-03-03 17:07:12,611 INFO L226 Difference]: Without dead ends: 13601 [2022-03-03 17:07:12,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3656, Invalid=12346, Unknown=0, NotChecked=0, Total=16002 [2022-03-03 17:07:12,612 INFO L933 BasicCegarLoop]: 635 mSDtfsCounter, 2069 mSDsluCounter, 12969 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 13320 SdHoareTripleChecker+Invalid, 2069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:12,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2069 Valid, 13320 Invalid, 2069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:07:12,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13601 states. [2022-03-03 17:07:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13601 to 7550. [2022-03-03 17:07:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7550 states, 7549 states have (on average 2.6464432375149025) internal successors, (19978), 7549 states have internal predecessors, (19978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7550 states to 7550 states and 19978 transitions. [2022-03-03 17:07:12,713 INFO L78 Accepts]: Start accepts. Automaton has 7550 states and 19978 transitions. Word has length 153 [2022-03-03 17:07:12,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:12,713 INFO L470 AbstractCegarLoop]: Abstraction has 7550 states and 19978 transitions. [2022-03-03 17:07:12,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:12,713 INFO L276 IsEmpty]: Start isEmpty. Operand 7550 states and 19978 transitions. [2022-03-03 17:07:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:12,721 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:12,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:12,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable564 [2022-03-03 17:07:12,721 INFO L402 AbstractCegarLoop]: === Iteration 566 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:12,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:12,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1478308630, now seen corresponding path program 12 times [2022-03-03 17:07:12,721 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:12,721 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621049506] [2022-03-03 17:07:12,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:12,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:13,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:13,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:13,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621049506] [2022-03-03 17:07:13,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621049506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:13,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:13,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:13,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808071266] [2022-03-03 17:07:13,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:13,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:13,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:13,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:13,173 INFO L87 Difference]: Start difference. First operand 7550 states and 19978 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:16,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:16,558 INFO L93 Difference]: Finished difference Result 13503 states and 35769 transitions. [2022-03-03 17:07:16,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:07:16,558 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:16,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:16,578 INFO L225 Difference]: With dead ends: 13503 [2022-03-03 17:07:16,578 INFO L226 Difference]: Without dead ends: 13012 [2022-03-03 17:07:16,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1151, Invalid=3961, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:07:16,579 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 1135 mSDsluCounter, 12303 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 12581 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:16,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 12581 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:07:16,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13012 states. [2022-03-03 17:07:16,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13012 to 7582. [2022-03-03 17:07:16,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7582 states, 7581 states have (on average 2.646352723915051) internal successors, (20062), 7581 states have internal predecessors, (20062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:16,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7582 states to 7582 states and 20062 transitions. [2022-03-03 17:07:16,717 INFO L78 Accepts]: Start accepts. Automaton has 7582 states and 20062 transitions. Word has length 153 [2022-03-03 17:07:16,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:16,717 INFO L470 AbstractCegarLoop]: Abstraction has 7582 states and 20062 transitions. [2022-03-03 17:07:16,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:16,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7582 states and 20062 transitions. [2022-03-03 17:07:16,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:16,725 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:16,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:16,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable565 [2022-03-03 17:07:16,726 INFO L402 AbstractCegarLoop]: === Iteration 567 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:16,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:16,726 INFO L85 PathProgramCache]: Analyzing trace with hash 149214488, now seen corresponding path program 13 times [2022-03-03 17:07:16,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:16,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306518681] [2022-03-03 17:07:16,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:16,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:17,205 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:17,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306518681] [2022-03-03 17:07:17,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306518681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:17,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:17,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:17,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280236703] [2022-03-03 17:07:17,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:17,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:17,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:17,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:17,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:17,206 INFO L87 Difference]: Start difference. First operand 7582 states and 20062 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:20,761 INFO L93 Difference]: Finished difference Result 13500 states and 35759 transitions. [2022-03-03 17:07:20,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:07:20,762 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:20,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:20,777 INFO L225 Difference]: With dead ends: 13500 [2022-03-03 17:07:20,778 INFO L226 Difference]: Without dead ends: 13008 [2022-03-03 17:07:20,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1189, Invalid=4663, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:07:20,778 INFO L933 BasicCegarLoop]: 573 mSDtfsCounter, 1161 mSDsluCounter, 12484 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 12769 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:20,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 12769 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:07:20,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13008 states. [2022-03-03 17:07:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13008 to 7578. [2022-03-03 17:07:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7578 states, 7577 states have (on average 2.6462980071268314) internal successors, (20051), 7577 states have internal predecessors, (20051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:20,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7578 states to 7578 states and 20051 transitions. [2022-03-03 17:07:20,885 INFO L78 Accepts]: Start accepts. Automaton has 7578 states and 20051 transitions. Word has length 153 [2022-03-03 17:07:20,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:20,885 INFO L470 AbstractCegarLoop]: Abstraction has 7578 states and 20051 transitions. [2022-03-03 17:07:20,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 7578 states and 20051 transitions. [2022-03-03 17:07:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:20,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:20,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:20,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable566 [2022-03-03 17:07:20,893 INFO L402 AbstractCegarLoop]: === Iteration 568 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:20,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:20,893 INFO L85 PathProgramCache]: Analyzing trace with hash -971842852, now seen corresponding path program 14 times [2022-03-03 17:07:20,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:20,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020225972] [2022-03-03 17:07:20,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:20,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:21,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:21,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020225972] [2022-03-03 17:07:21,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020225972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:21,341 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:21,341 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:21,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720464006] [2022-03-03 17:07:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:21,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:21,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:21,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:21,342 INFO L87 Difference]: Start difference. First operand 7578 states and 20051 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:25,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:25,241 INFO L93 Difference]: Finished difference Result 13536 states and 35854 transitions. [2022-03-03 17:07:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:07:25,241 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:25,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:25,259 INFO L225 Difference]: With dead ends: 13536 [2022-03-03 17:07:25,259 INFO L226 Difference]: Without dead ends: 13004 [2022-03-03 17:07:25,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1499, Invalid=5983, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 17:07:25,260 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1236 mSDsluCounter, 12677 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 12969 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:25,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 12969 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:07:25,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13004 states. [2022-03-03 17:07:25,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13004 to 7574. [2022-03-03 17:07:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7573 states have (on average 2.6462432325366434) internal successors, (20040), 7573 states have internal predecessors, (20040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 20040 transitions. [2022-03-03 17:07:25,375 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 20040 transitions. Word has length 153 [2022-03-03 17:07:25,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:25,375 INFO L470 AbstractCegarLoop]: Abstraction has 7574 states and 20040 transitions. [2022-03-03 17:07:25,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:25,375 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 20040 transitions. [2022-03-03 17:07:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:25,383 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:25,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:25,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable567 [2022-03-03 17:07:25,383 INFO L402 AbstractCegarLoop]: === Iteration 569 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:25,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:25,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1496978388, now seen corresponding path program 15 times [2022-03-03 17:07:25,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:25,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806152294] [2022-03-03 17:07:25,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:25,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:25,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:25,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:25,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806152294] [2022-03-03 17:07:25,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806152294] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:25,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:25,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:25,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613213779] [2022-03-03 17:07:25,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:25,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:25,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:25,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:25,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:25,875 INFO L87 Difference]: Start difference. First operand 7574 states and 20040 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:30,431 INFO L93 Difference]: Finished difference Result 13572 states and 35949 transitions. [2022-03-03 17:07:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 17:07:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:30,446 INFO L225 Difference]: With dead ends: 13572 [2022-03-03 17:07:30,446 INFO L226 Difference]: Without dead ends: 13000 [2022-03-03 17:07:30,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1845 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1879, Invalid=7433, Unknown=0, NotChecked=0, Total=9312 [2022-03-03 17:07:30,447 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 1323 mSDsluCounter, 12262 mSDsCounter, 0 mSdLazyCounter, 2070 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 12576 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:30,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 12576 Invalid, 2070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2070 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:07:30,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13000 states. [2022-03-03 17:07:30,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13000 to 7570. [2022-03-03 17:07:30,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7570 states, 7569 states have (on average 2.6461884000528473) internal successors, (20029), 7569 states have internal predecessors, (20029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7570 states to 7570 states and 20029 transitions. [2022-03-03 17:07:30,561 INFO L78 Accepts]: Start accepts. Automaton has 7570 states and 20029 transitions. Word has length 153 [2022-03-03 17:07:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:30,562 INFO L470 AbstractCegarLoop]: Abstraction has 7570 states and 20029 transitions. [2022-03-03 17:07:30,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7570 states and 20029 transitions. [2022-03-03 17:07:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:30,570 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:30,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:30,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable568 [2022-03-03 17:07:30,570 INFO L402 AbstractCegarLoop]: === Iteration 570 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:30,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:30,571 INFO L85 PathProgramCache]: Analyzing trace with hash -844685122, now seen corresponding path program 16 times [2022-03-03 17:07:30,571 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:30,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521359408] [2022-03-03 17:07:30,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:30,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:31,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:31,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:31,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521359408] [2022-03-03 17:07:31,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521359408] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:31,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:31,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:31,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905498584] [2022-03-03 17:07:31,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:31,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:31,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:31,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:31,037 INFO L87 Difference]: Start difference. First operand 7570 states and 20029 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:36,180 INFO L93 Difference]: Finished difference Result 13608 states and 36044 transitions. [2022-03-03 17:07:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 17:07:36,180 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:36,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:36,197 INFO L225 Difference]: With dead ends: 13608 [2022-03-03 17:07:36,197 INFO L226 Difference]: Without dead ends: 12996 [2022-03-03 17:07:36,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2519 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2329, Invalid=9013, Unknown=0, NotChecked=0, Total=11342 [2022-03-03 17:07:36,199 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 1405 mSDsluCounter, 12449 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 12768 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:36,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1405 Valid, 12768 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:07:36,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12996 states. [2022-03-03 17:07:36,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12996 to 7566. [2022-03-03 17:07:36,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7566 states, 7565 states have (on average 2.646133509583609) internal successors, (20018), 7565 states have internal predecessors, (20018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7566 states to 7566 states and 20018 transitions. [2022-03-03 17:07:36,312 INFO L78 Accepts]: Start accepts. Automaton has 7566 states and 20018 transitions. Word has length 153 [2022-03-03 17:07:36,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:36,312 INFO L470 AbstractCegarLoop]: Abstraction has 7566 states and 20018 transitions. [2022-03-03 17:07:36,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:36,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7566 states and 20018 transitions. [2022-03-03 17:07:36,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:36,320 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:36,320 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:36,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable569 [2022-03-03 17:07:36,320 INFO L402 AbstractCegarLoop]: === Iteration 571 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:36,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:36,320 INFO L85 PathProgramCache]: Analyzing trace with hash 364999122, now seen corresponding path program 17 times [2022-03-03 17:07:36,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:36,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002650729] [2022-03-03 17:07:36,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:36,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:36,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:36,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002650729] [2022-03-03 17:07:36,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002650729] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:36,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:36,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:36,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387564833] [2022-03-03 17:07:36,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:36,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:36,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:36,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:36,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:36,773 INFO L87 Difference]: Start difference. First operand 7566 states and 20018 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:42,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:42,733 INFO L93 Difference]: Finished difference Result 13724 states and 36351 transitions. [2022-03-03 17:07:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 17:07:42,734 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:42,749 INFO L225 Difference]: With dead ends: 13724 [2022-03-03 17:07:42,749 INFO L226 Difference]: Without dead ends: 12984 [2022-03-03 17:07:42,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3262 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2849, Invalid=10723, Unknown=0, NotChecked=0, Total=13572 [2022-03-03 17:07:42,750 INFO L933 BasicCegarLoop]: 610 mSDtfsCounter, 1504 mSDsluCounter, 13184 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 13498 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:42,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1504 Valid, 13498 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2161 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:07:42,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12984 states. [2022-03-03 17:07:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12984 to 7554. [2022-03-03 17:07:42,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7554 states, 7553 states have (on average 2.6459684893419833) internal successors, (19985), 7553 states have internal predecessors, (19985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 19985 transitions. [2022-03-03 17:07:42,871 INFO L78 Accepts]: Start accepts. Automaton has 7554 states and 19985 transitions. Word has length 153 [2022-03-03 17:07:42,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:42,872 INFO L470 AbstractCegarLoop]: Abstraction has 7554 states and 19985 transitions. [2022-03-03 17:07:42,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 7554 states and 19985 transitions. [2022-03-03 17:07:42,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:42,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:42,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:42,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable570 [2022-03-03 17:07:42,881 INFO L402 AbstractCegarLoop]: === Iteration 572 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:42,881 INFO L85 PathProgramCache]: Analyzing trace with hash -377610332, now seen corresponding path program 18 times [2022-03-03 17:07:42,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:42,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541047970] [2022-03-03 17:07:42,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:42,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:43,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:43,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541047970] [2022-03-03 17:07:43,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541047970] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:43,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:43,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:43,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395039082] [2022-03-03 17:07:43,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:43,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:43,343 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:43,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:43,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:43,343 INFO L87 Difference]: Start difference. First operand 7554 states and 19985 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:49,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:49,916 INFO L93 Difference]: Finished difference Result 13677 states and 36224 transitions. [2022-03-03 17:07:49,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-03 17:07:49,916 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:49,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:49,931 INFO L225 Difference]: With dead ends: 13677 [2022-03-03 17:07:49,931 INFO L226 Difference]: Without dead ends: 12853 [2022-03-03 17:07:49,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3637 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=3241, Invalid=11521, Unknown=0, NotChecked=0, Total=14762 [2022-03-03 17:07:49,932 INFO L933 BasicCegarLoop]: 620 mSDtfsCounter, 1611 mSDsluCounter, 13289 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1611 SdHoareTripleChecker+Valid, 13613 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:49,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1611 Valid, 13613 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:07:49,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12853 states. [2022-03-03 17:07:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12853 to 7498. [2022-03-03 17:07:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7498 states, 7497 states have (on average 2.6457249566493264) internal successors, (19835), 7497 states have internal predecessors, (19835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7498 states to 7498 states and 19835 transitions. [2022-03-03 17:07:50,038 INFO L78 Accepts]: Start accepts. Automaton has 7498 states and 19835 transitions. Word has length 153 [2022-03-03 17:07:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:50,038 INFO L470 AbstractCegarLoop]: Abstraction has 7498 states and 19835 transitions. [2022-03-03 17:07:50,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 7498 states and 19835 transitions. [2022-03-03 17:07:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:50,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:50,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:50,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable571 [2022-03-03 17:07:50,046 INFO L402 AbstractCegarLoop]: === Iteration 573 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:50,046 INFO L85 PathProgramCache]: Analyzing trace with hash 144088952, now seen corresponding path program 19 times [2022-03-03 17:07:50,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:50,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636675928] [2022-03-03 17:07:50,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:50,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:50,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:50,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636675928] [2022-03-03 17:07:50,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636675928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:50,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:50,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:50,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872885618] [2022-03-03 17:07:50,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:50,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:50,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:50,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:50,545 INFO L87 Difference]: Start difference. First operand 7498 states and 19835 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:54,242 INFO L93 Difference]: Finished difference Result 13381 states and 35446 transitions. [2022-03-03 17:07:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-03 17:07:54,243 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:54,267 INFO L225 Difference]: With dead ends: 13381 [2022-03-03 17:07:54,267 INFO L226 Difference]: Without dead ends: 12890 [2022-03-03 17:07:54,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1187, Invalid=4069, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:07:54,268 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 1127 mSDsluCounter, 11596 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 11882 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:54,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 11882 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-03 17:07:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12890 states. [2022-03-03 17:07:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12890 to 7542. [2022-03-03 17:07:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7542 states, 7541 states have (on average 2.6458029439066437) internal successors, (19952), 7541 states have internal predecessors, (19952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7542 states to 7542 states and 19952 transitions. [2022-03-03 17:07:54,419 INFO L78 Accepts]: Start accepts. Automaton has 7542 states and 19952 transitions. Word has length 153 [2022-03-03 17:07:54,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:54,419 INFO L470 AbstractCegarLoop]: Abstraction has 7542 states and 19952 transitions. [2022-03-03 17:07:54,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:54,419 INFO L276 IsEmpty]: Start isEmpty. Operand 7542 states and 19952 transitions. [2022-03-03 17:07:54,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:54,427 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:54,427 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:54,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable572 [2022-03-03 17:07:54,428 INFO L402 AbstractCegarLoop]: === Iteration 574 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:54,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:54,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1771612070, now seen corresponding path program 20 times [2022-03-03 17:07:54,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:54,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188035975] [2022-03-03 17:07:54,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:54,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:54,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:54,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188035975] [2022-03-03 17:07:54,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188035975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:54,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:54,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:54,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492713876] [2022-03-03 17:07:54,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:54,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:54,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:54,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:54,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:54,952 INFO L87 Difference]: Start difference. First operand 7542 states and 19952 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:58,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:58,361 INFO L93 Difference]: Finished difference Result 13359 states and 35390 transitions. [2022-03-03 17:07:58,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:07:58,361 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:07:58,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:58,379 INFO L225 Difference]: With dead ends: 13359 [2022-03-03 17:07:58,379 INFO L226 Difference]: Without dead ends: 12867 [2022-03-03 17:07:58,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1208, Invalid=4644, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:07:58,380 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1124 mSDsluCounter, 11128 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 11445 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:58,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 11445 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:07:58,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12867 states. [2022-03-03 17:07:58,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12867 to 7538. [2022-03-03 17:07:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 7537 states have (on average 2.645747644951572) internal successors, (19941), 7537 states have internal predecessors, (19941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:58,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 19941 transitions. [2022-03-03 17:07:58,524 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 19941 transitions. Word has length 153 [2022-03-03 17:07:58,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:58,525 INFO L470 AbstractCegarLoop]: Abstraction has 7538 states and 19941 transitions. [2022-03-03 17:07:58,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:58,525 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 19941 transitions. [2022-03-03 17:07:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:07:58,534 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:58,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:58,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable573 [2022-03-03 17:07:58,534 INFO L402 AbstractCegarLoop]: === Iteration 575 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash 650554730, now seen corresponding path program 21 times [2022-03-03 17:07:58,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:58,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084179519] [2022-03-03 17:07:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:58,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:58,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:58,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:58,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084179519] [2022-03-03 17:07:58,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084179519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:58,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:58,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:07:58,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516322843] [2022-03-03 17:07:58,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:58,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:07:58,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:58,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:07:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:07:58,990 INFO L87 Difference]: Start difference. First operand 7538 states and 19941 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:02,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:02,865 INFO L93 Difference]: Finished difference Result 13395 states and 35485 transitions. [2022-03-03 17:08:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:08:02,865 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:02,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:02,883 INFO L225 Difference]: With dead ends: 13395 [2022-03-03 17:08:02,883 INFO L226 Difference]: Without dead ends: 12863 [2022-03-03 17:08:02,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1322 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1521, Invalid=5961, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 17:08:02,884 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1216 mSDsluCounter, 11864 mSDsCounter, 0 mSdLazyCounter, 2046 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 12174 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:02,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 12174 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2046 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12863 states. [2022-03-03 17:08:02,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12863 to 7534. [2022-03-03 17:08:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6456922872693482) internal successors, (19930), 7533 states have internal predecessors, (19930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19930 transitions. [2022-03-03 17:08:02,999 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19930 transitions. Word has length 153 [2022-03-03 17:08:02,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:02,999 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19930 transitions. [2022-03-03 17:08:02,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:03,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19930 transitions. [2022-03-03 17:08:03,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:03,007 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:03,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:03,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable574 [2022-03-03 17:08:03,007 INFO L402 AbstractCegarLoop]: === Iteration 576 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash 125419194, now seen corresponding path program 22 times [2022-03-03 17:08:03,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:03,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57194016] [2022-03-03 17:08:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:03,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:03,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:03,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57194016] [2022-03-03 17:08:03,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57194016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:03,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:03,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:03,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181320262] [2022-03-03 17:08:03,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:03,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:03,484 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:03,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:03,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:03,485 INFO L87 Difference]: Start difference. First operand 7534 states and 19930 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:08,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:08,048 INFO L93 Difference]: Finished difference Result 13431 states and 35580 transitions. [2022-03-03 17:08:08,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 17:08:08,048 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:08,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:08,062 INFO L225 Difference]: With dead ends: 13431 [2022-03-03 17:08:08,062 INFO L226 Difference]: Without dead ends: 12859 [2022-03-03 17:08:08,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1833 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1908, Invalid=7404, Unknown=0, NotChecked=0, Total=9312 [2022-03-03 17:08:08,062 INFO L933 BasicCegarLoop]: 579 mSDtfsCounter, 1287 mSDsluCounter, 12031 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 12348 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:08,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1287 Valid, 12348 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:08,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12859 states. [2022-03-03 17:08:08,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12859 to 7530. [2022-03-03 17:08:08,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.64563687076637) internal successors, (19919), 7529 states have internal predecessors, (19919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:08,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19919 transitions. [2022-03-03 17:08:08,170 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19919 transitions. Word has length 153 [2022-03-03 17:08:08,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:08,170 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19919 transitions. [2022-03-03 17:08:08,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19919 transitions. [2022-03-03 17:08:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:08,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:08,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:08,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable575 [2022-03-03 17:08:08,177 INFO L402 AbstractCegarLoop]: === Iteration 577 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:08,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:08,177 INFO L85 PathProgramCache]: Analyzing trace with hash 777712460, now seen corresponding path program 23 times [2022-03-03 17:08:08,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:08,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747378047] [2022-03-03 17:08:08,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:08,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:08,626 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:08,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747378047] [2022-03-03 17:08:08,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747378047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:08,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:08,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:08,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014338648] [2022-03-03 17:08:08,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:08,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:08,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:08,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:08,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:08,627 INFO L87 Difference]: Start difference. First operand 7530 states and 19919 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:13,881 INFO L93 Difference]: Finished difference Result 13467 states and 35675 transitions. [2022-03-03 17:08:13,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 17:08:13,881 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:13,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:13,901 INFO L225 Difference]: With dead ends: 13467 [2022-03-03 17:08:13,901 INFO L226 Difference]: Without dead ends: 12855 [2022-03-03 17:08:13,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2499 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2367, Invalid=8975, Unknown=0, NotChecked=0, Total=11342 [2022-03-03 17:08:13,903 INFO L933 BasicCegarLoop]: 588 mSDtfsCounter, 1364 mSDsluCounter, 12243 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 12563 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:13,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1364 Valid, 12563 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:13,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12855 states. [2022-03-03 17:08:14,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12855 to 7526. [2022-03-03 17:08:14,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.645581395348837) internal successors, (19908), 7525 states have internal predecessors, (19908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:14,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19908 transitions. [2022-03-03 17:08:14,041 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19908 transitions. Word has length 153 [2022-03-03 17:08:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:14,041 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19908 transitions. [2022-03-03 17:08:14,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19908 transitions. [2022-03-03 17:08:14,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:14,050 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:14,050 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:14,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable576 [2022-03-03 17:08:14,050 INFO L402 AbstractCegarLoop]: === Iteration 578 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:14,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:14,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1987396704, now seen corresponding path program 24 times [2022-03-03 17:08:14,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:14,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052606701] [2022-03-03 17:08:14,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:14,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:14,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:14,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052606701] [2022-03-03 17:08:14,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052606701] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:14,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:14,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:14,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494048246] [2022-03-03 17:08:14,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:14,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:14,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:14,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:14,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:14,581 INFO L87 Difference]: Start difference. First operand 7526 states and 19908 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:20,547 INFO L93 Difference]: Finished difference Result 13927 states and 36884 transitions. [2022-03-03 17:08:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-03-03 17:08:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:20,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:20,564 INFO L225 Difference]: With dead ends: 13927 [2022-03-03 17:08:20,565 INFO L226 Difference]: Without dead ends: 13187 [2022-03-03 17:08:20,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3327 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2861, Invalid=10479, Unknown=0, NotChecked=0, Total=13340 [2022-03-03 17:08:20,566 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1527 mSDsluCounter, 11117 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 11474 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:20,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1527 Valid, 11474 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13187 states. [2022-03-03 17:08:20,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13187 to 7514. [2022-03-03 17:08:20,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7514 states, 7513 states have (on average 2.6443497936909357) internal successors, (19867), 7513 states have internal predecessors, (19867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7514 states to 7514 states and 19867 transitions. [2022-03-03 17:08:20,681 INFO L78 Accepts]: Start accepts. Automaton has 7514 states and 19867 transitions. Word has length 153 [2022-03-03 17:08:20,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:20,681 INFO L470 AbstractCegarLoop]: Abstraction has 7514 states and 19867 transitions. [2022-03-03 17:08:20,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,681 INFO L276 IsEmpty]: Start isEmpty. Operand 7514 states and 19867 transitions. [2022-03-03 17:08:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:20,689 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:20,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:20,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable577 [2022-03-03 17:08:20,689 INFO L402 AbstractCegarLoop]: === Iteration 579 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash 618015740, now seen corresponding path program 25 times [2022-03-03 17:08:20,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:20,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448313280] [2022-03-03 17:08:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:20,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:21,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:21,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448313280] [2022-03-03 17:08:21,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448313280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:21,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:21,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:21,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819574822] [2022-03-03 17:08:21,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:21,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:21,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:21,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:21,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:21,158 INFO L87 Difference]: Start difference. First operand 7514 states and 19867 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:24,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:24,570 INFO L93 Difference]: Finished difference Result 13309 states and 35236 transitions. [2022-03-03 17:08:24,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:08:24,570 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:24,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:24,589 INFO L225 Difference]: With dead ends: 13309 [2022-03-03 17:08:24,589 INFO L226 Difference]: Without dead ends: 12818 [2022-03-03 17:08:24,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1263, Invalid=4287, Unknown=0, NotChecked=0, Total=5550 [2022-03-03 17:08:24,590 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 1119 mSDsluCounter, 11087 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 11389 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:24,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 11389 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:08:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12818 states. [2022-03-03 17:08:24,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12818 to 7534. [2022-03-03 17:08:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6440992964290455) internal successors, (19918), 7533 states have internal predecessors, (19918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:24,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19918 transitions. [2022-03-03 17:08:24,702 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19918 transitions. Word has length 153 [2022-03-03 17:08:24,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:24,703 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19918 transitions. [2022-03-03 17:08:24,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19918 transitions. [2022-03-03 17:08:24,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:24,710 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:24,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:24,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable578 [2022-03-03 17:08:24,710 INFO L402 AbstractCegarLoop]: === Iteration 580 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:24,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:24,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2049428438, now seen corresponding path program 26 times [2022-03-03 17:08:24,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:24,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633103114] [2022-03-03 17:08:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:24,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:25,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:25,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:25,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633103114] [2022-03-03 17:08:25,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633103114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:25,197 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:25,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:25,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388789838] [2022-03-03 17:08:25,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:25,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:25,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:25,198 INFO L87 Difference]: Start difference. First operand 7534 states and 19918 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:28,523 INFO L93 Difference]: Finished difference Result 13275 states and 35147 transitions. [2022-03-03 17:08:28,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:08:28,523 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:28,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:28,539 INFO L225 Difference]: With dead ends: 13275 [2022-03-03 17:08:28,539 INFO L226 Difference]: Without dead ends: 12783 [2022-03-03 17:08:28,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1212, Invalid=4640, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:08:28,540 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1109 mSDsluCounter, 11696 mSDsCounter, 0 mSdLazyCounter, 2025 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 11997 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:28,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 11997 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2025 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:28,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12783 states. [2022-03-03 17:08:28,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12783 to 7530. [2022-03-03 17:08:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6440430336034) internal successors, (19907), 7529 states have internal predecessors, (19907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19907 transitions. [2022-03-03 17:08:28,652 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19907 transitions. Word has length 153 [2022-03-03 17:08:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:28,652 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19907 transitions. [2022-03-03 17:08:28,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,652 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19907 transitions. [2022-03-03 17:08:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:28,662 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:28,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:28,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable579 [2022-03-03 17:08:28,662 INFO L402 AbstractCegarLoop]: === Iteration 581 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:28,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1124481518, now seen corresponding path program 27 times [2022-03-03 17:08:28,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:28,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8251253] [2022-03-03 17:08:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:28,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:29,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:29,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8251253] [2022-03-03 17:08:29,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8251253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:29,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:29,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:29,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846214816] [2022-03-03 17:08:29,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:29,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:29,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:29,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:29,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:29,112 INFO L87 Difference]: Start difference. First operand 7530 states and 19907 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:33,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:33,245 INFO L93 Difference]: Finished difference Result 13311 states and 35242 transitions. [2022-03-03 17:08:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:08:33,246 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:33,264 INFO L225 Difference]: With dead ends: 13311 [2022-03-03 17:08:33,264 INFO L226 Difference]: Without dead ends: 12779 [2022-03-03 17:08:33,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1245 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1539, Invalid=5943, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 17:08:33,265 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1195 mSDsluCounter, 12412 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 12708 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:33,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 12708 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2107 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:33,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12779 states. [2022-03-03 17:08:33,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12779 to 7526. [2022-03-03 17:08:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.643986710963455) internal successors, (19896), 7525 states have internal predecessors, (19896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19896 transitions. [2022-03-03 17:08:33,374 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19896 transitions. Word has length 153 [2022-03-03 17:08:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:33,374 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19896 transitions. [2022-03-03 17:08:33,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:33,374 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19896 transitions. [2022-03-03 17:08:33,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:33,381 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:33,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:33,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable580 [2022-03-03 17:08:33,382 INFO L402 AbstractCegarLoop]: === Iteration 582 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:33,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash 599345982, now seen corresponding path program 28 times [2022-03-03 17:08:33,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:33,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825050930] [2022-03-03 17:08:33,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:33,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:33,834 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:33,834 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825050930] [2022-03-03 17:08:33,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825050930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:33,834 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:33,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:33,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207048876] [2022-03-03 17:08:33,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:33,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:33,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:33,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:33,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:33,835 INFO L87 Difference]: Start difference. First operand 7526 states and 19896 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:38,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:38,403 INFO L93 Difference]: Finished difference Result 13539 states and 35841 transitions. [2022-03-03 17:08:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-03-03 17:08:38,403 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:38,420 INFO L225 Difference]: With dead ends: 13539 [2022-03-03 17:08:38,420 INFO L226 Difference]: Without dead ends: 12967 [2022-03-03 17:08:38,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1763 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1893, Invalid=7227, Unknown=0, NotChecked=0, Total=9120 [2022-03-03 17:08:38,421 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1296 mSDsluCounter, 12005 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 12317 SdHoareTripleChecker+Invalid, 2019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:38,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1296 Valid, 12317 Invalid, 2019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12967 states. [2022-03-03 17:08:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12967 to 7522. [2022-03-03 17:08:38,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 2.643930328413775) internal successors, (19885), 7521 states have internal predecessors, (19885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:38,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19885 transitions. [2022-03-03 17:08:38,536 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19885 transitions. Word has length 153 [2022-03-03 17:08:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:38,536 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 19885 transitions. [2022-03-03 17:08:38,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19885 transitions. [2022-03-03 17:08:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:38,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:38,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:38,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable581 [2022-03-03 17:08:38,544 INFO L402 AbstractCegarLoop]: === Iteration 583 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:38,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash 409032578, now seen corresponding path program 29 times [2022-03-03 17:08:38,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:38,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033102710] [2022-03-03 17:08:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:38,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:38,995 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:38,995 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033102710] [2022-03-03 17:08:38,995 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033102710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:38,995 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:38,995 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:38,995 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061708921] [2022-03-03 17:08:38,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:38,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:38,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:38,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:38,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:38,996 INFO L87 Difference]: Start difference. First operand 7522 states and 19885 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:42,693 INFO L93 Difference]: Finished difference Result 13285 states and 35166 transitions. [2022-03-03 17:08:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:08:42,693 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:42,711 INFO L225 Difference]: With dead ends: 13285 [2022-03-03 17:08:42,711 INFO L226 Difference]: Without dead ends: 12794 [2022-03-03 17:08:42,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1301, Invalid=4399, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:08:42,712 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1125 mSDsluCounter, 11632 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 11923 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:42,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 11923 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12794 states. [2022-03-03 17:08:42,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12794 to 7534. [2022-03-03 17:08:42,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.643568299482278) internal successors, (19914), 7533 states have internal predecessors, (19914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19914 transitions. [2022-03-03 17:08:42,828 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19914 transitions. Word has length 153 [2022-03-03 17:08:42,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:42,829 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19914 transitions. [2022-03-03 17:08:42,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:42,829 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19914 transitions. [2022-03-03 17:08:42,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:42,836 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:42,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:42,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable582 [2022-03-03 17:08:42,836 INFO L402 AbstractCegarLoop]: === Iteration 584 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:42,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2036555696, now seen corresponding path program 30 times [2022-03-03 17:08:42,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:42,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169839597] [2022-03-03 17:08:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:43,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:43,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169839597] [2022-03-03 17:08:43,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169839597] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:43,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:43,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:43,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327403370] [2022-03-03 17:08:43,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:43,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:43,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:43,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:43,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:43,296 INFO L87 Difference]: Start difference. First operand 7534 states and 19914 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:46,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:46,707 INFO L93 Difference]: Finished difference Result 13243 states and 35055 transitions. [2022-03-03 17:08:46,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:08:46,707 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:46,725 INFO L225 Difference]: With dead ends: 13243 [2022-03-03 17:08:46,726 INFO L226 Difference]: Without dead ends: 12751 [2022-03-03 17:08:46,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1217, Invalid=4635, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:08:46,726 INFO L933 BasicCegarLoop]: 562 mSDtfsCounter, 1112 mSDsluCounter, 11150 mSDsCounter, 0 mSdLazyCounter, 1936 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 11466 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:46,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 11466 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:46,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12751 states. [2022-03-03 17:08:46,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12751 to 7530. [2022-03-03 17:08:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6435117545490767) internal successors, (19903), 7529 states have internal predecessors, (19903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:46,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19903 transitions. [2022-03-03 17:08:46,865 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19903 transitions. Word has length 153 [2022-03-03 17:08:46,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:46,865 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19903 transitions. [2022-03-03 17:08:46,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:46,865 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19903 transitions. [2022-03-03 17:08:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:46,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:46,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:46,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable583 [2022-03-03 17:08:46,874 INFO L402 AbstractCegarLoop]: === Iteration 585 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:46,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:46,875 INFO L85 PathProgramCache]: Analyzing trace with hash 915498356, now seen corresponding path program 31 times [2022-03-03 17:08:46,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:46,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257967708] [2022-03-03 17:08:46,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:46,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:47,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:47,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257967708] [2022-03-03 17:08:47,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257967708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:47,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:47,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:47,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886458571] [2022-03-03 17:08:47,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:47,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:47,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:47,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:47,411 INFO L87 Difference]: Start difference. First operand 7530 states and 19903 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:51,395 INFO L93 Difference]: Finished difference Result 13411 states and 35497 transitions. [2022-03-03 17:08:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 17:08:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:51,414 INFO L225 Difference]: With dead ends: 13411 [2022-03-03 17:08:51,414 INFO L226 Difference]: Without dead ends: 12879 [2022-03-03 17:08:51,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1300 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1511, Invalid=5799, Unknown=0, NotChecked=0, Total=7310 [2022-03-03 17:08:51,415 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1201 mSDsluCounter, 11820 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 12128 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:51,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 12128 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12879 states. [2022-03-03 17:08:51,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12879 to 7526. [2022-03-03 17:08:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.643455149501661) internal successors, (19892), 7525 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:51,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19892 transitions. [2022-03-03 17:08:51,534 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19892 transitions. Word has length 153 [2022-03-03 17:08:51,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:51,534 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19892 transitions. [2022-03-03 17:08:51,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19892 transitions. [2022-03-03 17:08:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:51,542 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:51,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:51,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable584 [2022-03-03 17:08:51,542 INFO L402 AbstractCegarLoop]: === Iteration 586 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:51,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:51,543 INFO L85 PathProgramCache]: Analyzing trace with hash 988128080, now seen corresponding path program 32 times [2022-03-03 17:08:51,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:51,543 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373524053] [2022-03-03 17:08:51,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:51,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:52,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:52,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373524053] [2022-03-03 17:08:52,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373524053] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:52,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:52,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:52,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402266295] [2022-03-03 17:08:52,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:52,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:52,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:52,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:52,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:52,022 INFO L87 Difference]: Start difference. First operand 7526 states and 19892 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:56,256 INFO L93 Difference]: Finished difference Result 13194 states and 34918 transitions. [2022-03-03 17:08:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-03-03 17:08:56,257 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:08:56,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:56,271 INFO L225 Difference]: With dead ends: 13194 [2022-03-03 17:08:56,272 INFO L226 Difference]: Without dead ends: 12660 [2022-03-03 17:08:56,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1585, Invalid=5057, Unknown=0, NotChecked=0, Total=6642 [2022-03-03 17:08:56,272 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 1177 mSDsluCounter, 12243 mSDsCounter, 0 mSdLazyCounter, 2061 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 12522 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:56,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 12522 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2061 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:08:56,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12660 states. [2022-03-03 17:08:56,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12660 to 7530. [2022-03-03 17:08:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6429804754947535) internal successors, (19899), 7529 states have internal predecessors, (19899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19899 transitions. [2022-03-03 17:08:56,378 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19899 transitions. Word has length 153 [2022-03-03 17:08:56,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:56,378 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19899 transitions. [2022-03-03 17:08:56,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19899 transitions. [2022-03-03 17:08:56,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:08:56,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:56,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:56,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable585 [2022-03-03 17:08:56,386 INFO L402 AbstractCegarLoop]: === Iteration 587 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:56,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:56,386 INFO L85 PathProgramCache]: Analyzing trace with hash -569787270, now seen corresponding path program 33 times [2022-03-03 17:08:56,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:56,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377794720] [2022-03-03 17:08:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:56,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:56,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:56,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377794720] [2022-03-03 17:08:56,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377794720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:56,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:56,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:08:56,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632479567] [2022-03-03 17:08:56,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:56,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:08:56,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:56,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:08:56,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:08:56,858 INFO L87 Difference]: Start difference. First operand 7530 states and 19899 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:00,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:00,499 INFO L93 Difference]: Finished difference Result 13202 states and 34936 transitions. [2022-03-03 17:09:00,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:09:00,500 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:00,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:00,522 INFO L225 Difference]: With dead ends: 13202 [2022-03-03 17:09:00,522 INFO L226 Difference]: Without dead ends: 12711 [2022-03-03 17:09:00,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1345, Invalid=4507, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:09:00,523 INFO L933 BasicCegarLoop]: 564 mSDtfsCounter, 1164 mSDsluCounter, 11133 mSDsCounter, 0 mSdLazyCounter, 1919 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 11439 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:00,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 11439 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1919 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:00,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12711 states. [2022-03-03 17:09:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12711 to 7534. [2022-03-03 17:09:00,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6425063055887428) internal successors, (19906), 7533 states have internal predecessors, (19906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:00,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19906 transitions. [2022-03-03 17:09:00,668 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19906 transitions. Word has length 153 [2022-03-03 17:09:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:00,668 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19906 transitions. [2022-03-03 17:09:00,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19906 transitions. [2022-03-03 17:09:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:00,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:00,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:00,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable586 [2022-03-03 17:09:00,678 INFO L402 AbstractCegarLoop]: === Iteration 588 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:00,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:00,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1057735848, now seen corresponding path program 34 times [2022-03-03 17:09:00,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:00,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165126030] [2022-03-03 17:09:00,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:00,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:01,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:01,236 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:01,236 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165126030] [2022-03-03 17:09:01,236 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165126030] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:01,236 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:01,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:01,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566655781] [2022-03-03 17:09:01,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:01,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:01,237 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:01,237 INFO L87 Difference]: Start difference. First operand 7534 states and 19906 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:04,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:04,732 INFO L93 Difference]: Finished difference Result 13152 states and 34803 transitions. [2022-03-03 17:09:04,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:09:04,732 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:04,780 INFO L225 Difference]: With dead ends: 13152 [2022-03-03 17:09:04,780 INFO L226 Difference]: Without dead ends: 12648 [2022-03-03 17:09:04,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1181, Invalid=4519, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:09:04,781 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1085 mSDsluCounter, 11808 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 12106 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:04,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 12106 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:04,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2022-03-03 17:09:04,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 7518. [2022-03-03 17:09:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7517 states have (on average 2.6438738858587203) internal successors, (19874), 7517 states have internal predecessors, (19874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:04,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19874 transitions. [2022-03-03 17:09:04,876 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19874 transitions. Word has length 153 [2022-03-03 17:09:04,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:04,876 INFO L470 AbstractCegarLoop]: Abstraction has 7518 states and 19874 transitions. [2022-03-03 17:09:04,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:04,876 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19874 transitions. [2022-03-03 17:09:04,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:04,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:04,883 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:04,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable587 [2022-03-03 17:09:04,883 INFO L402 AbstractCegarLoop]: === Iteration 589 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:04,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:04,884 INFO L85 PathProgramCache]: Analyzing trace with hash -202548836, now seen corresponding path program 35 times [2022-03-03 17:09:04,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:04,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871085974] [2022-03-03 17:09:04,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:04,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:05,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:05,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:05,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871085974] [2022-03-03 17:09:05,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871085974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:05,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:05,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:05,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643093830] [2022-03-03 17:09:05,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:05,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:05,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:05,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:05,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:05,332 INFO L87 Difference]: Start difference. First operand 7518 states and 19874 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:08,868 INFO L93 Difference]: Finished difference Result 13214 states and 34977 transitions. [2022-03-03 17:09:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:09:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:08,887 INFO L225 Difference]: With dead ends: 13214 [2022-03-03 17:09:08,888 INFO L226 Difference]: Without dead ends: 12723 [2022-03-03 17:09:08,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1223, Invalid=4179, Unknown=0, NotChecked=0, Total=5402 [2022-03-03 17:09:08,889 INFO L933 BasicCegarLoop]: 558 mSDtfsCounter, 1173 mSDsluCounter, 11624 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 11911 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:08,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 11911 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12723 states. [2022-03-03 17:09:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12723 to 7534. [2022-03-03 17:09:09,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.643568299482278) internal successors, (19914), 7533 states have internal predecessors, (19914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19914 transitions. [2022-03-03 17:09:09,026 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19914 transitions. Word has length 153 [2022-03-03 17:09:09,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:09,026 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19914 transitions. [2022-03-03 17:09:09,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19914 transitions. [2022-03-03 17:09:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:09,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:09,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:09,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable588 [2022-03-03 17:09:09,035 INFO L402 AbstractCegarLoop]: === Iteration 590 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:09,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:09,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1424974282, now seen corresponding path program 36 times [2022-03-03 17:09:09,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:09,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006332812] [2022-03-03 17:09:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:09,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:09,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:09,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006332812] [2022-03-03 17:09:09,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006332812] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:09,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:09,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:09,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970668421] [2022-03-03 17:09:09,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:09,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:09,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:09,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:09,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:09,544 INFO L87 Difference]: Start difference. First operand 7534 states and 19914 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:12,996 INFO L93 Difference]: Finished difference Result 13192 states and 34921 transitions. [2022-03-03 17:09:12,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:09:12,997 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:13,016 INFO L225 Difference]: With dead ends: 13192 [2022-03-03 17:09:13,016 INFO L226 Difference]: Without dead ends: 12700 [2022-03-03 17:09:13,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1213, Invalid=4639, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:09:13,017 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1120 mSDsluCounter, 11217 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 11527 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:13,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 11527 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:13,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12700 states. [2022-03-03 17:09:13,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12700 to 7530. [2022-03-03 17:09:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.6435117545490767) internal successors, (19903), 7529 states have internal predecessors, (19903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:13,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19903 transitions. [2022-03-03 17:09:13,156 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19903 transitions. Word has length 153 [2022-03-03 17:09:13,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:13,156 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19903 transitions. [2022-03-03 17:09:13,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19903 transitions. [2022-03-03 17:09:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:13,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:13,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:13,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable589 [2022-03-03 17:09:13,166 INFO L402 AbstractCegarLoop]: === Iteration 591 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:13,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:13,166 INFO L85 PathProgramCache]: Analyzing trace with hash 303916942, now seen corresponding path program 37 times [2022-03-03 17:09:13,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:13,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859068] [2022-03-03 17:09:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:13,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:13,641 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:13,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859068] [2022-03-03 17:09:13,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:13,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:13,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:13,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360735651] [2022-03-03 17:09:13,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:13,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:13,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:13,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:13,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:13,642 INFO L87 Difference]: Start difference. First operand 7530 states and 19903 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:17,578 INFO L93 Difference]: Finished difference Result 13228 states and 35016 transitions. [2022-03-03 17:09:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:09:17,579 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:17,598 INFO L225 Difference]: With dead ends: 13228 [2022-03-03 17:09:17,598 INFO L226 Difference]: Without dead ends: 12696 [2022-03-03 17:09:17,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1531, Invalid=5951, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 17:09:17,599 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1189 mSDsluCounter, 11447 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 11760 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:17,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1189 Valid, 11760 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:17,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12696 states. [2022-03-03 17:09:17,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12696 to 7526. [2022-03-03 17:09:17,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.643455149501661) internal successors, (19892), 7525 states have internal predecessors, (19892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:17,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19892 transitions. [2022-03-03 17:09:17,730 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19892 transitions. Word has length 153 [2022-03-03 17:09:17,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:17,730 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19892 transitions. [2022-03-03 17:09:17,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:17,730 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19892 transitions. [2022-03-03 17:09:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:17,739 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:17,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:17,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable590 [2022-03-03 17:09:17,739 INFO L402 AbstractCegarLoop]: === Iteration 592 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash -221218594, now seen corresponding path program 38 times [2022-03-03 17:09:17,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:17,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794139182] [2022-03-03 17:09:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:17,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:18,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:18,224 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794139182] [2022-03-03 17:09:18,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794139182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:18,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:18,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:18,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563237569] [2022-03-03 17:09:18,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:18,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:18,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:18,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:18,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:18,225 INFO L87 Difference]: Start difference. First operand 7526 states and 19892 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:22,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:22,885 INFO L93 Difference]: Finished difference Result 13264 states and 35111 transitions. [2022-03-03 17:09:22,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 17:09:22,886 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:22,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:22,907 INFO L225 Difference]: With dead ends: 13264 [2022-03-03 17:09:22,907 INFO L226 Difference]: Without dead ends: 12692 [2022-03-03 17:09:22,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1823 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1923, Invalid=7389, Unknown=0, NotChecked=0, Total=9312 [2022-03-03 17:09:22,908 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 1264 mSDsluCounter, 12706 mSDsCounter, 0 mSdLazyCounter, 2105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 13000 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:22,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 13000 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2105 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12692 states. [2022-03-03 17:09:23,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12692 to 7522. [2022-03-03 17:09:23,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 2.6433984842441163) internal successors, (19881), 7521 states have internal predecessors, (19881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19881 transitions. [2022-03-03 17:09:23,035 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19881 transitions. Word has length 153 [2022-03-03 17:09:23,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:23,035 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 19881 transitions. [2022-03-03 17:09:23,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:23,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19881 transitions. [2022-03-03 17:09:23,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:23,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:23,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:23,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable591 [2022-03-03 17:09:23,044 INFO L402 AbstractCegarLoop]: === Iteration 593 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:23,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:23,044 INFO L85 PathProgramCache]: Analyzing trace with hash 431074672, now seen corresponding path program 39 times [2022-03-03 17:09:23,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:23,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603947274] [2022-03-03 17:09:23,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:23,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:23,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:23,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:23,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603947274] [2022-03-03 17:09:23,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603947274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:23,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:23,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:23,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784506278] [2022-03-03 17:09:23,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:23,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:23,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:23,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:23,542 INFO L87 Difference]: Start difference. First operand 7522 states and 19881 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:28,762 INFO L93 Difference]: Finished difference Result 13260 states and 35096 transitions. [2022-03-03 17:09:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-03-03 17:09:28,762 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:28,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:28,781 INFO L225 Difference]: With dead ends: 13260 [2022-03-03 17:09:28,781 INFO L226 Difference]: Without dead ends: 12632 [2022-03-03 17:09:28,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2426 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2343, Invalid=8787, Unknown=0, NotChecked=0, Total=11130 [2022-03-03 17:09:28,783 INFO L933 BasicCegarLoop]: 591 mSDtfsCounter, 1342 mSDsluCounter, 12221 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 12534 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:28,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 12534 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:28,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12632 states. [2022-03-03 17:09:28,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12632 to 7502. [2022-03-03 17:09:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7501 states have (on average 2.645247300359952) internal successors, (19842), 7501 states have internal predecessors, (19842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:28,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19842 transitions. [2022-03-03 17:09:28,897 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19842 transitions. Word has length 153 [2022-03-03 17:09:28,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:28,898 INFO L470 AbstractCegarLoop]: Abstraction has 7502 states and 19842 transitions. [2022-03-03 17:09:28,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:28,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19842 transitions. [2022-03-03 17:09:28,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:28,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:28,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:28,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable592 [2022-03-03 17:09:28,906 INFO L402 AbstractCegarLoop]: === Iteration 594 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:28,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:28,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1385273000, now seen corresponding path program 40 times [2022-03-03 17:09:28,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:28,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662536692] [2022-03-03 17:09:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:28,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:29,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:29,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662536692] [2022-03-03 17:09:29,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662536692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:29,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:29,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:29,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356469214] [2022-03-03 17:09:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:29,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:29,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:29,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:29,383 INFO L87 Difference]: Start difference. First operand 7502 states and 19842 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:32,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:32,734 INFO L93 Difference]: Finished difference Result 13230 states and 35033 transitions. [2022-03-03 17:09:32,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:09:32,734 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:32,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:32,755 INFO L225 Difference]: With dead ends: 13230 [2022-03-03 17:09:32,756 INFO L226 Difference]: Without dead ends: 12739 [2022-03-03 17:09:32,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1155, Invalid=3957, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:09:32,757 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 1146 mSDsluCounter, 11135 mSDsCounter, 0 mSdLazyCounter, 1917 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 11431 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:32,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 11431 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1917 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:32,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12739 states. [2022-03-03 17:09:32,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12739 to 7534. [2022-03-03 17:09:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6451612903225805) internal successors, (19926), 7533 states have internal predecessors, (19926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19926 transitions. [2022-03-03 17:09:32,912 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19926 transitions. Word has length 153 [2022-03-03 17:09:32,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:32,912 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19926 transitions. [2022-03-03 17:09:32,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:32,912 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19926 transitions. [2022-03-03 17:09:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:32,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:32,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:32,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable593 [2022-03-03 17:09:32,922 INFO L402 AbstractCegarLoop]: === Iteration 595 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:32,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:32,922 INFO L85 PathProgramCache]: Analyzing trace with hash 242250118, now seen corresponding path program 41 times [2022-03-03 17:09:32,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:32,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593345025] [2022-03-03 17:09:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:33,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:33,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593345025] [2022-03-03 17:09:33,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593345025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:33,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:33,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:33,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937122175] [2022-03-03 17:09:33,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:33,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:33,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:33,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:33,434 INFO L87 Difference]: Start difference. First operand 7534 states and 19926 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:36,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:36,742 INFO L93 Difference]: Finished difference Result 13227 states and 35023 transitions. [2022-03-03 17:09:36,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:09:36,742 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:36,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:36,760 INFO L225 Difference]: With dead ends: 13227 [2022-03-03 17:09:36,761 INFO L226 Difference]: Without dead ends: 12735 [2022-03-03 17:09:36,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1197, Invalid=4655, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:09:36,762 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 1160 mSDsluCounter, 11802 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 12094 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:36,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 12094 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:36,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12735 states. [2022-03-03 17:09:36,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12735 to 7530. [2022-03-03 17:09:36,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.645105591712047) internal successors, (19915), 7529 states have internal predecessors, (19915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19915 transitions. [2022-03-03 17:09:36,886 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19915 transitions. Word has length 153 [2022-03-03 17:09:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:36,886 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19915 transitions. [2022-03-03 17:09:36,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:36,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19915 transitions. [2022-03-03 17:09:36,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:36,894 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:36,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:36,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable594 [2022-03-03 17:09:36,895 INFO L402 AbstractCegarLoop]: === Iteration 596 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:36,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:36,895 INFO L85 PathProgramCache]: Analyzing trace with hash -878807222, now seen corresponding path program 42 times [2022-03-03 17:09:36,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:36,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508293842] [2022-03-03 17:09:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:36,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:37,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:37,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508293842] [2022-03-03 17:09:37,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508293842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:37,352 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:37,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:37,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684957184] [2022-03-03 17:09:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:37,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:37,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:37,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:37,353 INFO L87 Difference]: Start difference. First operand 7530 states and 19915 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:41,348 INFO L93 Difference]: Finished difference Result 13263 states and 35118 transitions. [2022-03-03 17:09:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:09:41,348 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:41,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:41,367 INFO L225 Difference]: With dead ends: 13263 [2022-03-03 17:09:41,367 INFO L226 Difference]: Without dead ends: 12731 [2022-03-03 17:09:41,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1509, Invalid=5973, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 17:09:41,368 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 1222 mSDsluCounter, 12560 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 12844 SdHoareTripleChecker+Invalid, 2100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:41,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1222 Valid, 12844 Invalid, 2100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:41,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12731 states. [2022-03-03 17:09:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12731 to 7526. [2022-03-03 17:09:41,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.645049833887043) internal successors, (19904), 7525 states have internal predecessors, (19904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:41,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19904 transitions. [2022-03-03 17:09:41,501 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19904 transitions. Word has length 153 [2022-03-03 17:09:41,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:41,502 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19904 transitions. [2022-03-03 17:09:41,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19904 transitions. [2022-03-03 17:09:41,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:41,510 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:41,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:41,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable595 [2022-03-03 17:09:41,511 INFO L402 AbstractCegarLoop]: === Iteration 597 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:41,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:41,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1403942758, now seen corresponding path program 43 times [2022-03-03 17:09:41,511 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:41,511 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274912209] [2022-03-03 17:09:41,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:41,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:42,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:42,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:42,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274912209] [2022-03-03 17:09:42,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274912209] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:42,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:42,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:42,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464918535] [2022-03-03 17:09:42,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:42,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:42,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:42,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:42,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:42,033 INFO L87 Difference]: Start difference. First operand 7526 states and 19904 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:46,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:46,586 INFO L93 Difference]: Finished difference Result 13299 states and 35213 transitions. [2022-03-03 17:09:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 17:09:46,587 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:46,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:46,605 INFO L225 Difference]: With dead ends: 13299 [2022-03-03 17:09:46,606 INFO L226 Difference]: Without dead ends: 12727 [2022-03-03 17:09:46,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1962 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1901, Invalid=7411, Unknown=0, NotChecked=0, Total=9312 [2022-03-03 17:09:46,607 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1299 mSDsluCounter, 11050 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 11382 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:46,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1299 Valid, 11382 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:46,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12727 states. [2022-03-03 17:09:46,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12727 to 7522. [2022-03-03 17:09:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 2.6449940167530914) internal successors, (19893), 7521 states have internal predecessors, (19893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:46,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19893 transitions. [2022-03-03 17:09:46,743 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19893 transitions. Word has length 153 [2022-03-03 17:09:46,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:46,743 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 19893 transitions. [2022-03-03 17:09:46,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:46,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19893 transitions. [2022-03-03 17:09:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:46,752 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:46,752 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:46,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable596 [2022-03-03 17:09:46,752 INFO L402 AbstractCegarLoop]: === Iteration 598 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash -751649492, now seen corresponding path program 44 times [2022-03-03 17:09:46,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:46,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104454267] [2022-03-03 17:09:46,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:46,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:47,264 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:47,264 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104454267] [2022-03-03 17:09:47,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104454267] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:47,264 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:47,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:47,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804025943] [2022-03-03 17:09:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:47,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:47,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:47,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:47,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:47,265 INFO L87 Difference]: Start difference. First operand 7522 states and 19893 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:52,608 INFO L93 Difference]: Finished difference Result 13335 states and 35308 transitions. [2022-03-03 17:09:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 17:09:52,609 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:52,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:52,630 INFO L225 Difference]: With dead ends: 13335 [2022-03-03 17:09:52,630 INFO L226 Difference]: Without dead ends: 12723 [2022-03-03 17:09:52,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2510 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2347, Invalid=8995, Unknown=0, NotChecked=0, Total=11342 [2022-03-03 17:09:52,632 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 1396 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 12619 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:52,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 12619 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:52,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12723 states. [2022-03-03 17:09:52,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12723 to 7518. [2022-03-03 17:09:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7517 states have (on average 2.6449381402155114) internal successors, (19882), 7517 states have internal predecessors, (19882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19882 transitions. [2022-03-03 17:09:52,789 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19882 transitions. Word has length 153 [2022-03-03 17:09:52,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:52,789 INFO L470 AbstractCegarLoop]: Abstraction has 7518 states and 19882 transitions. [2022-03-03 17:09:52,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:52,789 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19882 transitions. [2022-03-03 17:09:52,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:52,797 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:52,797 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:52,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable597 [2022-03-03 17:09:52,798 INFO L402 AbstractCegarLoop]: === Iteration 599 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:52,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:52,798 INFO L85 PathProgramCache]: Analyzing trace with hash 458034752, now seen corresponding path program 45 times [2022-03-03 17:09:52,798 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:52,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486364060] [2022-03-03 17:09:52,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:52,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:53,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:53,294 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486364060] [2022-03-03 17:09:53,294 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486364060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:53,294 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:53,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:09:53,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470347705] [2022-03-03 17:09:53,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:53,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:09:53,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:53,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:09:53,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:09:53,295 INFO L87 Difference]: Start difference. First operand 7518 states and 19882 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:59,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:59,490 INFO L93 Difference]: Finished difference Result 13451 states and 35615 transitions. [2022-03-03 17:09:59,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 17:09:59,491 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:09:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:59,512 INFO L225 Difference]: With dead ends: 13451 [2022-03-03 17:09:59,512 INFO L226 Difference]: Without dead ends: 12711 [2022-03-03 17:09:59,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3415 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2879, Invalid=10693, Unknown=0, NotChecked=0, Total=13572 [2022-03-03 17:09:59,514 INFO L933 BasicCegarLoop]: 602 mSDtfsCounter, 1482 mSDsluCounter, 11267 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 11618 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:59,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 11618 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:09:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12711 states. [2022-03-03 17:09:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12711 to 7506. [2022-03-03 17:09:59,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7505 states have (on average 2.644770153231179) internal successors, (19849), 7505 states have internal predecessors, (19849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:59,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 19849 transitions. [2022-03-03 17:09:59,652 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 19849 transitions. Word has length 153 [2022-03-03 17:09:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:59,652 INFO L470 AbstractCegarLoop]: Abstraction has 7506 states and 19849 transitions. [2022-03-03 17:09:59,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 19849 transitions. [2022-03-03 17:09:59,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:09:59,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:59,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:59,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable598 [2022-03-03 17:09:59,661 INFO L402 AbstractCegarLoop]: === Iteration 600 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:59,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:59,662 INFO L85 PathProgramCache]: Analyzing trace with hash -284574702, now seen corresponding path program 46 times [2022-03-03 17:09:59,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:59,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512690730] [2022-03-03 17:09:59,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:59,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:00,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:00,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:00,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512690730] [2022-03-03 17:10:00,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512690730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:00,129 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:00,129 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:00,130 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840429293] [2022-03-03 17:10:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:00,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:00,130 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:00,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:00,130 INFO L87 Difference]: Start difference. First operand 7506 states and 19849 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:06,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:06,780 INFO L93 Difference]: Finished difference Result 13404 states and 35488 transitions. [2022-03-03 17:10:06,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-03 17:10:06,780 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:06,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:06,797 INFO L225 Difference]: With dead ends: 13404 [2022-03-03 17:10:06,798 INFO L226 Difference]: Without dead ends: 12576 [2022-03-03 17:10:06,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3625 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=3265, Invalid=11497, Unknown=0, NotChecked=0, Total=14762 [2022-03-03 17:10:06,799 INFO L933 BasicCegarLoop]: 609 mSDtfsCounter, 1598 mSDsluCounter, 12516 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 12844 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:06,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1598 Valid, 12844 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:06,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12576 states. [2022-03-03 17:10:06,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12576 to 7446. [2022-03-03 17:10:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 7445 states have (on average 2.651443922095366) internal successors, (19740), 7445 states have internal predecessors, (19740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:06,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 19740 transitions. [2022-03-03 17:10:06,927 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 19740 transitions. Word has length 153 [2022-03-03 17:10:06,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:06,927 INFO L470 AbstractCegarLoop]: Abstraction has 7446 states and 19740 transitions. [2022-03-03 17:10:06,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:06,927 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 19740 transitions. [2022-03-03 17:10:06,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:06,938 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:06,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:06,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable599 [2022-03-03 17:10:06,938 INFO L402 AbstractCegarLoop]: === Iteration 601 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:06,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:06,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1825233314, now seen corresponding path program 47 times [2022-03-03 17:10:06,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:06,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515198547] [2022-03-03 17:10:06,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:06,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:07,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:07,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515198547] [2022-03-03 17:10:07,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515198547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:07,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:07,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:07,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978603474] [2022-03-03 17:10:07,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:07,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:07,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:07,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:07,448 INFO L87 Difference]: Start difference. First operand 7446 states and 19740 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:14,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:14,541 INFO L93 Difference]: Finished difference Result 14635 states and 38703 transitions. [2022-03-03 17:10:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-03-03 17:10:14,541 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:14,557 INFO L225 Difference]: With dead ends: 14635 [2022-03-03 17:10:14,557 INFO L226 Difference]: Without dead ends: 13347 [2022-03-03 17:10:14,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4203 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3638, Invalid=12364, Unknown=0, NotChecked=0, Total=16002 [2022-03-03 17:10:14,558 INFO L933 BasicCegarLoop]: 637 mSDtfsCounter, 2106 mSDsluCounter, 11750 mSDsCounter, 0 mSdLazyCounter, 1874 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 12133 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:14,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2106 Valid, 12133 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1874 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13347 states. [2022-03-03 17:10:14,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13347 to 7502. [2022-03-03 17:10:14,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 7501 states have (on average 2.645247300359952) internal successors, (19842), 7501 states have internal predecessors, (19842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 19842 transitions. [2022-03-03 17:10:14,659 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 19842 transitions. Word has length 153 [2022-03-03 17:10:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:14,659 INFO L470 AbstractCegarLoop]: Abstraction has 7502 states and 19842 transitions. [2022-03-03 17:10:14,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 19842 transitions. [2022-03-03 17:10:14,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:14,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:14,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:14,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable600 [2022-03-03 17:10:14,667 INFO L402 AbstractCegarLoop]: === Iteration 602 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:14,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:14,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1673727330, now seen corresponding path program 48 times [2022-03-03 17:10:14,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:14,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042182035] [2022-03-03 17:10:14,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:14,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:15,123 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:15,123 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042182035] [2022-03-03 17:10:15,123 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042182035] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:15,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:15,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:15,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369961117] [2022-03-03 17:10:15,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:15,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:15,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:15,124 INFO L87 Difference]: Start difference. First operand 7502 states and 19842 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:18,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:18,553 INFO L93 Difference]: Finished difference Result 13024 states and 34479 transitions. [2022-03-03 17:10:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 17:10:18,554 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:18,572 INFO L225 Difference]: With dead ends: 13024 [2022-03-03 17:10:18,572 INFO L226 Difference]: Without dead ends: 12533 [2022-03-03 17:10:18,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1149, Invalid=3963, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:10:18,573 INFO L933 BasicCegarLoop]: 563 mSDtfsCounter, 1142 mSDsluCounter, 11736 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 12030 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:18,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 12030 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12533 states. [2022-03-03 17:10:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12533 to 7534. [2022-03-03 17:10:18,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7534 states, 7533 states have (on average 2.6451612903225805) internal successors, (19926), 7533 states have internal predecessors, (19926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 19926 transitions. [2022-03-03 17:10:18,679 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 19926 transitions. Word has length 153 [2022-03-03 17:10:18,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:18,679 INFO L470 AbstractCegarLoop]: Abstraction has 7534 states and 19926 transitions. [2022-03-03 17:10:18,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:18,679 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 19926 transitions. [2022-03-03 17:10:18,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:18,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:18,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:18,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable601 [2022-03-03 17:10:18,687 INFO L402 AbstractCegarLoop]: === Iteration 603 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:18,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:18,687 INFO L85 PathProgramCache]: Analyzing trace with hash -993716848, now seen corresponding path program 49 times [2022-03-03 17:10:18,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:18,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968404661] [2022-03-03 17:10:18,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:18,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:19,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:19,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968404661] [2022-03-03 17:10:19,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968404661] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:19,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:19,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:19,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037801831] [2022-03-03 17:10:19,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:19,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:19,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:19,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:19,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:19,144 INFO L87 Difference]: Start difference. First operand 7534 states and 19926 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:22,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:22,511 INFO L93 Difference]: Finished difference Result 13021 states and 34469 transitions. [2022-03-03 17:10:22,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:10:22,511 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:22,529 INFO L225 Difference]: With dead ends: 13021 [2022-03-03 17:10:22,529 INFO L226 Difference]: Without dead ends: 12529 [2022-03-03 17:10:22,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1185, Invalid=4667, Unknown=0, NotChecked=0, Total=5852 [2022-03-03 17:10:22,529 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1196 mSDsluCounter, 12346 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 12633 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:22,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 12633 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:22,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12529 states. [2022-03-03 17:10:22,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12529 to 7530. [2022-03-03 17:10:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 7529 states have (on average 2.645105591712047) internal successors, (19915), 7529 states have internal predecessors, (19915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 19915 transitions. [2022-03-03 17:10:22,642 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 19915 transitions. Word has length 153 [2022-03-03 17:10:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:22,642 INFO L470 AbstractCegarLoop]: Abstraction has 7530 states and 19915 transitions. [2022-03-03 17:10:22,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 19915 transitions. [2022-03-03 17:10:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:22,650 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:22,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:22,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable602 [2022-03-03 17:10:22,651 INFO L402 AbstractCegarLoop]: === Iteration 604 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:22,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:22,651 INFO L85 PathProgramCache]: Analyzing trace with hash -2114774188, now seen corresponding path program 50 times [2022-03-03 17:10:22,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:22,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370423402] [2022-03-03 17:10:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:23,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:23,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:23,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370423402] [2022-03-03 17:10:23,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370423402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:23,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:23,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:23,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432958571] [2022-03-03 17:10:23,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:23,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:23,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:23,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:23,114 INFO L87 Difference]: Start difference. First operand 7530 states and 19915 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:27,001 INFO L93 Difference]: Finished difference Result 13057 states and 34564 transitions. [2022-03-03 17:10:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 17:10:27,002 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:27,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:27,020 INFO L225 Difference]: With dead ends: 13057 [2022-03-03 17:10:27,020 INFO L226 Difference]: Without dead ends: 12525 [2022-03-03 17:10:27,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1270 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1489, Invalid=5993, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 17:10:27,021 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1283 mSDsluCounter, 12526 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 12819 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:27,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1283 Valid, 12819 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:27,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12525 states. [2022-03-03 17:10:27,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12525 to 7526. [2022-03-03 17:10:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7526 states, 7525 states have (on average 2.645049833887043) internal successors, (19904), 7525 states have internal predecessors, (19904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:27,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7526 states to 7526 states and 19904 transitions. [2022-03-03 17:10:27,136 INFO L78 Accepts]: Start accepts. Automaton has 7526 states and 19904 transitions. Word has length 153 [2022-03-03 17:10:27,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:27,136 INFO L470 AbstractCegarLoop]: Abstraction has 7526 states and 19904 transitions. [2022-03-03 17:10:27,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 7526 states and 19904 transitions. [2022-03-03 17:10:27,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:27,145 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:27,145 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:27,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable603 [2022-03-03 17:10:27,145 INFO L402 AbstractCegarLoop]: === Iteration 605 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:27,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:27,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1655057572, now seen corresponding path program 51 times [2022-03-03 17:10:27,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:27,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148737058] [2022-03-03 17:10:27,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:27,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:27,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:27,611 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:27,611 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148737058] [2022-03-03 17:10:27,611 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148737058] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:27,611 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:27,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:27,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903781003] [2022-03-03 17:10:27,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:27,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:27,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:27,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:27,612 INFO L87 Difference]: Start difference. First operand 7526 states and 19904 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:32,204 INFO L93 Difference]: Finished difference Result 13093 states and 34659 transitions. [2022-03-03 17:10:32,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-03 17:10:32,204 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:32,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:32,219 INFO L225 Difference]: With dead ends: 13093 [2022-03-03 17:10:32,219 INFO L226 Difference]: Without dead ends: 12521 [2022-03-03 17:10:32,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1852 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1865, Invalid=7447, Unknown=0, NotChecked=0, Total=9312 [2022-03-03 17:10:32,219 INFO L933 BasicCegarLoop]: 576 mSDtfsCounter, 1375 mSDsluCounter, 12113 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 12426 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:32,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1375 Valid, 12426 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:32,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12521 states. [2022-03-03 17:10:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12521 to 7522. [2022-03-03 17:10:32,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7522 states, 7521 states have (on average 2.6449940167530914) internal successors, (19893), 7521 states have internal predecessors, (19893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:32,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7522 states to 7522 states and 19893 transitions. [2022-03-03 17:10:32,332 INFO L78 Accepts]: Start accepts. Automaton has 7522 states and 19893 transitions. Word has length 153 [2022-03-03 17:10:32,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:32,332 INFO L470 AbstractCegarLoop]: Abstraction has 7522 states and 19893 transitions. [2022-03-03 17:10:32,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7522 states and 19893 transitions. [2022-03-03 17:10:32,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:32,341 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:32,341 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:32,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable604 [2022-03-03 17:10:32,341 INFO L402 AbstractCegarLoop]: === Iteration 606 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:32,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1987616458, now seen corresponding path program 52 times [2022-03-03 17:10:32,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:32,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467734647] [2022-03-03 17:10:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:32,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:32,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:32,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:32,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467734647] [2022-03-03 17:10:32,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467734647] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:32,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:32,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:32,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634060922] [2022-03-03 17:10:32,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:32,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:32,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:32,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:32,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=804, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:32,804 INFO L87 Difference]: Start difference. First operand 7522 states and 19893 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:37,929 INFO L93 Difference]: Finished difference Result 13129 states and 34754 transitions. [2022-03-03 17:10:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-03 17:10:37,929 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:37,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:37,949 INFO L225 Difference]: With dead ends: 13129 [2022-03-03 17:10:37,949 INFO L226 Difference]: Without dead ends: 12517 [2022-03-03 17:10:37,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2528 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2311, Invalid=9031, Unknown=0, NotChecked=0, Total=11342 [2022-03-03 17:10:37,951 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 1477 mSDsluCounter, 12258 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 12577 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:37,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 12577 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:37,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12517 states. [2022-03-03 17:10:38,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12517 to 7518. [2022-03-03 17:10:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7518 states, 7517 states have (on average 2.6449381402155114) internal successors, (19882), 7517 states have internal predecessors, (19882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7518 states to 7518 states and 19882 transitions. [2022-03-03 17:10:38,088 INFO L78 Accepts]: Start accepts. Automaton has 7518 states and 19882 transitions. Word has length 153 [2022-03-03 17:10:38,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:38,088 INFO L470 AbstractCegarLoop]: Abstraction has 7518 states and 19882 transitions. [2022-03-03 17:10:38,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:38,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7518 states and 19882 transitions. [2022-03-03 17:10:38,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:38,098 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:38,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:38,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable605 [2022-03-03 17:10:38,098 INFO L402 AbstractCegarLoop]: === Iteration 607 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:38,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash -777932214, now seen corresponding path program 53 times [2022-03-03 17:10:38,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:38,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144560508] [2022-03-03 17:10:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:38,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:38,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:38,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144560508] [2022-03-03 17:10:38,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144560508] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:38,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:38,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:38,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635518539] [2022-03-03 17:10:38,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:38,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:38,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:38,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:38,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:38,562 INFO L87 Difference]: Start difference. First operand 7518 states and 19882 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:44,384 INFO L93 Difference]: Finished difference Result 13245 states and 35061 transitions. [2022-03-03 17:10:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-03 17:10:44,384 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:44,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:44,400 INFO L225 Difference]: With dead ends: 13245 [2022-03-03 17:10:44,400 INFO L226 Difference]: Without dead ends: 12505 [2022-03-03 17:10:44,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3367 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2829, Invalid=10743, Unknown=0, NotChecked=0, Total=13572 [2022-03-03 17:10:44,401 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 1564 mSDsluCounter, 12989 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 13301 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:44,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1564 Valid, 13301 Invalid, 2072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:44,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12505 states. [2022-03-03 17:10:44,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12505 to 7506. [2022-03-03 17:10:44,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7505 states have (on average 2.644770153231179) internal successors, (19849), 7505 states have internal predecessors, (19849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 19849 transitions. [2022-03-03 17:10:44,520 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 19849 transitions. Word has length 153 [2022-03-03 17:10:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:44,520 INFO L470 AbstractCegarLoop]: Abstraction has 7506 states and 19849 transitions. [2022-03-03 17:10:44,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:44,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 19849 transitions. [2022-03-03 17:10:44,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:44,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:44,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:44,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable606 [2022-03-03 17:10:44,529 INFO L402 AbstractCegarLoop]: === Iteration 608 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:44,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:44,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1520541668, now seen corresponding path program 54 times [2022-03-03 17:10:44,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:44,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928197590] [2022-03-03 17:10:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:44,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:45,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:45,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:45,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928197590] [2022-03-03 17:10:45,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928197590] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:45,015 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:45,015 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:45,015 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711987617] [2022-03-03 17:10:45,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:45,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:45,015 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:45,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:45,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=805, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:45,015 INFO L87 Difference]: Start difference. First operand 7506 states and 19849 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:51,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:51,553 INFO L93 Difference]: Finished difference Result 13273 states and 35134 transitions. [2022-03-03 17:10:51,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-03 17:10:51,554 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-03-03 17:10:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:51,572 INFO L225 Difference]: With dead ends: 13273 [2022-03-03 17:10:51,572 INFO L226 Difference]: Without dead ends: 12449 [2022-03-03 17:10:51,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3649 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=3216, Invalid=11546, Unknown=0, NotChecked=0, Total=14762 [2022-03-03 17:10:51,574 INFO L933 BasicCegarLoop]: 600 mSDtfsCounter, 1720 mSDsluCounter, 13108 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 13425 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:51,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1720 Valid, 13425 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-03 17:10:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12449 states. [2022-03-03 17:10:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12449 to 7450. [2022-03-03 17:10:51,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7450 states, 7449 states have (on average 2.650959860383944) internal successors, (19747), 7449 states have internal predecessors, (19747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:51,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7450 states to 7450 states and 19747 transitions. [2022-03-03 17:10:51,723 INFO L78 Accepts]: Start accepts. Automaton has 7450 states and 19747 transitions. Word has length 153 [2022-03-03 17:10:51,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:51,723 INFO L470 AbstractCegarLoop]: Abstraction has 7450 states and 19747 transitions. [2022-03-03 17:10:51,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:51,723 INFO L276 IsEmpty]: Start isEmpty. Operand 7450 states and 19747 transitions. [2022-03-03 17:10:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-03 17:10:51,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:51,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:51,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable607 [2022-03-03 17:10:51,732 INFO L402 AbstractCegarLoop]: === Iteration 609 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:51,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2074063128, now seen corresponding path program 55 times [2022-03-03 17:10:51,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:51,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697962154] [2022-03-03 17:10:51,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:51,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:51,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:52,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:52,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:52,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697962154] [2022-03-03 17:10:52,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697962154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:52,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:52,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-03 17:10:52,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319884492] [2022-03-03 17:10:52,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:52,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-03 17:10:52,213 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:52,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-03 17:10:52,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=802, Unknown=0, NotChecked=0, Total=870 [2022-03-03 17:10:52,214 INFO L87 Difference]: Start difference. First operand 7450 states and 19747 transitions. Second operand has 30 states, 30 states have (on average 5.1) internal successors, (153), 30 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-03 17:10:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-03 17:10:59,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3866 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=3854, Invalid=11398, Unknown=0, NotChecked=0, Total=15252 [2022-03-03 17:10:59,262 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1637 mSDsluCounter, 12072 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 12428 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:59,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1637 Valid, 12428 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-03 17:10:59,263 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-03 17:10:59,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable608 [2022-03-03 17:10:59,264 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (7450states) and FLOYD_HOARE automaton (currently 97 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (12984 states constructed, input type IntersectNwa). [2022-03-03 17:10:59,265 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-03 17:10:59,265 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-03 17:10:59,267 INFO L732 BasicCegarLoop]: Path program histogram: [252, 252, 55, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:59,268 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 17:10:59,268 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 17:10:59,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:10:59 BasicIcfg [2022-03-03 17:10:59,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 17:10:59,270 INFO L158 Benchmark]: Toolchain (without parser) took 717460.26ms. Allocated memory was 190.8MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 140.1MB in the beginning and 1.1GB in the end (delta: -938.7MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-03 17:10:59,270 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 17:10:59,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 190.8MB. Free memory was 139.9MB in the beginning and 165.1MB in the end (delta: -25.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2022-03-03 17:10:59,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.80ms. Allocated memory is still 190.8MB. Free memory was 165.1MB in the beginning and 163.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:10:59,270 INFO L158 Benchmark]: Boogie Preprocessor took 23.50ms. Allocated memory is still 190.8MB. Free memory was 163.2MB in the beginning and 161.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 17:10:59,270 INFO L158 Benchmark]: RCFGBuilder took 423.72ms. Allocated memory is still 190.8MB. Free memory was 161.7MB in the beginning and 145.7MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-03 17:10:59,270 INFO L158 Benchmark]: TraceAbstraction took 716768.86ms. Allocated memory was 190.8MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 145.0MB in the beginning and 1.1GB in the end (delta: -933.9MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-03 17:10:59,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 190.8MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 190.8MB. Free memory was 139.9MB in the beginning and 165.1MB in the end (delta: -25.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.80ms. Allocated memory is still 190.8MB. Free memory was 165.1MB in the beginning and 163.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.50ms. Allocated memory is still 190.8MB. Free memory was 163.2MB in the beginning and 161.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 423.72ms. Allocated memory is still 190.8MB. Free memory was 161.7MB in the beginning and 145.7MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 716768.86ms. Allocated memory was 190.8MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 145.0MB in the beginning and 1.1GB in the end (delta: -933.9MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (7450states) and FLOYD_HOARE automaton (currently 97 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (12984 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7450states) and FLOYD_HOARE automaton (currently 97 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (12984 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (7450states) and FLOYD_HOARE automaton (currently 97 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (12984 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 300 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 716.6s, OverallIterations: 609, TraceHistogramMax: 1, PathProgramHistogramMax: 252, EmptinessCheckTime: 6.3s, AutomataDifference: 542.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 229470 SdHoareTripleChecker+Valid, 114.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229470 mSDsluCounter, 2276776 SdHoareTripleChecker+Invalid, 95.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2129325 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302179 IncrementalHoareTripleChecker+Invalid, 302259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 192569 mSDtfsCounter, 302179 mSolverCounterSat, 2.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39032 GetRequests, 12382 SyntacticMatches, 0 SemanticMatches, 26650 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313332 ImplicationChecksByTransitivity, 431.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11777occurred in iteration=0, InterpolantAutomatonStates: 21864, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 79.3s AutomataMinimizationTime, 608 MinimizatonAttempts, 1005662 StatesRemovedByMinimization, 604 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 81.7s InterpolantComputationTime, 68441 NumberOfCodeBlocks, 68441 NumberOfCodeBlocksAsserted, 609 NumberOfCheckSat, 67832 ConstructedInterpolants, 0 QuantifiedInterpolants, 339027 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 609 InterpolantComputations, 609 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2022-03-03 17:10:59,282 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end